Fundamentals of Communications Systems
Michael P. Fitz
A Strange Manuscript Found in a Copper Cylinder
James De Mille
German Quickly: A Grammar for Reading German
April Wilson
Cambridge Mathematics 2 Unit, Year 11, 2nd Edition
Derek Ward & Bill Pender & David Sadler & Julia Shea
Lie Catcher - Become a human lie detector in under 60 minutes
David Craig