David Kahn

Cracking the AP Calculus AB & BC Exams, 2013 Edition (College Test Preparation)

2012

The codebreakers

1996

Advanced Krav Maga: The Next Level of Fitness and Self-Defense

2008

The Codebreakers: The Story of Secret Writing

1967

The Codebreakers

1973

Princeton Review: Cracking the Regents: Sequential Math III, 1999-2000 Edition

1999