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Gray Hat Hacking(6th Edition)
The Ethical Hacker's Handbook, Sixth Edition (Paperback)
by Allen Harper, Ryan Linn, Stephen Sims, Shon Harris, Chris Eagle, Jonathan Ness, Branko Spasojevic, Daniel Regalado, Michael Baucom, Huascar Tejeda, Daniel Fernandez, Moses Frost
Paperback, 752 Pages, Published 2022 by Mcgraw-Hill Education 2022-04-28, New York
ISBN-13: 978-1-264-26894-8, ISBN: 1-264-26894-7

The Bride And The Mercenary(1st Edition)
(The Avengers)
by Harper Allen
Paperback, 256 Pages, Published 2002 by Harlequin
ISBN-13: 978-0-373-22663-4, ISBN: 0-373-22663-2

Gray Hat Hacking The Ethical Hacker's Handbook, Fourth Edition(4th Edition)
(Networking & Communication - OMG)
by Branko Spasojevic, Daniel Regalado, Shon Harris, Allen Harper, Chris Eagle, Jonathan Ness, Ryan Linn, Stephen Sims, Michael Baucom
Paperback, 656 Pages, Published 2015 by Mcgraw-Hill Education
ISBN-13: 978-0-07-183238-0, ISBN: 0-07-183238-6

Gray Hat Hacking The Ethical Hackers Handbook,(3rd Edition)
by Shon Harris, Allen Harper, Jonathan Ness, Gideon Lenkey, Terron Williams, Chris Eagle
Paperback, 720 Pages, Published 2011 by Mcgraw-Hill Osborne Media
ISBN-13: 978-0-07-174255-9, ISBN: 0-07-174255-7

Gray Hat Hacking, Second Edition(2nd Edition)
The Ethical Hacker's Handbook
by Shon Harris, Allen Harper, Jonathan Ness, Chris Eagle
Paperback, 550 Pages, Published 2007 by Mcgraw-Hill Osborne Media
ISBN-13: 978-0-07-149568-4, ISBN: 0-07-149568-1

Gray Hat Hacking(1st Edition)
The Ethical Hacker's Handbook
by Shon Harris, Michael Lester, Allen Harper, Chris Eagle, Jonathan Ness
Paperback, 434 Pages, Published 2004 by Mcgraw-Hill Osborne Media
ISBN-13: 978-0-07-225709-0, ISBN: 0-07-225709-1

Desperado Lawman
(Men of the Double B Ranch)
by Harper Allen
Paperback, 256 Pages, Published 2004 by Harlequin
ISBN-13: 978-0-373-22760-0, ISBN: 0-373-22760-4

Security Information and Event Management Implementation(1st Edition)
by David R. Miller, Shon Harris, Allen Harper, Chris Blask, Stephen Vandyke, Zachary Payton, Gabriel Mino
Paperback, 464 Pages, Published 2010 by Mcgraw-Hill Education
ISBN-13: 978-0-07-170109-9, ISBN: 0-07-170109-5

Accept-tional Me(Large type / Large print)
by Allen, Harper Jane, Studios, Qbn
Paperback, 24 Pages, Published 2021 by Shawn Allen
ISBN-13: 978-0-578-32070-0, ISBN: 0-578-32070-3

Dead Is The New Black
(Silhouette Bombshell)
by Harper Allen
Paperback, 304 Pages, Published 2007 by Silhouette
ISBN-13: 978-0-373-51437-3, ISBN: 0-373-51437-9

Dressed To Slay
(Silhouette Bombshell)
by Harper Allen
Paperback, 304 Pages, Published 2006 by Silhouette
ISBN-13: 978-0-373-51423-6, ISBN: 0-373-51423-9

Payback(1st Edition)
An Athena Force Adventure (Silhouette Bombshell)
by Harper Allen
Paperback, 304 Pages, Published 2005 by Silhouette Bombshell
ISBN-13: 978-0-373-51348-2, ISBN: 0-373-51348-8

Lone Rider Bodyguard(1st Edition)
by Harper Allen
Paperback, 256 Pages, Published 2004 by Harlequin
ISBN-13: 978-0-373-22754-9, ISBN: 0-373-22754-X

Shotgun Daddy
by Harper Allen
Paperback, 256 Pages, Published 2004 by Harlequin
ISBN-13: 978-0-373-22766-2, ISBN: 0-373-22766-3

McQueen's Heat(1st Edition)
by Harper Allen
Paperback, 256 Pages, Published 2003 by Harlequin
ISBN-13: 978-0-373-22695-5, ISBN: 0-373-22695-0

Covert Cowboy(1st Edition)
by Harper Allen
Paperback, 256 Pages, Published 2003 by Harlequin
ISBN-13: 978-0-373-22735-8, ISBN: 0-373-22735-3

Sullivan's Last Stand(1st Edition)
by Harper Allen
Paperback, 256 Pages, Published 2003 by Harlequin
ISBN-13: 978-0-373-22632-0, ISBN: 0-373-22632-2

The Night In Question No. 680
by Harper Allen
Paperback, 256 Pages, Published 2002 by Harlequin
ISBN-13: 978-0-373-22680-1, ISBN: 0-373-22680-2

Silhouette Intimate Moments
Protector with a Past Vol. 1091
by Harper Allen
Paperback, 251 Pages, Published 2002 by Silhouette Books
ISBN-13: 978-0-373-27161-0, ISBN: 0-373-27161-1

The Minister of Education Classic Reprint
by William Allen Harper
Softcover, Published by Forgotten Books
ISBN-13: 978-0-282-80741-2, ISBN: 0-282-80741-1