German Quickly: A Grammar for Reading German
April Wilson
Airplane Aerodynamics and Performance
Dr. Jan Roskam & Dr. Chuan-Tau Edward Lan
Aerodynamics for Naval Aviators
H. H. Hurt Jr
Ein Fall auf Rügen
Felix & Theo
Understanding the Sky - A Sport Pilot's Guide to Flying Conditions
Dennis Pagen
Paragliding Pilots Handbook
Papillon Paragliding
Elementary Pilot Training Guide
BHPA
The Art of Paragliding