How to Solve It: A New Aspect of Mathematical Method
John H. Conway & György Pólya
The Practice of English Language Teaching, 3rd Edition
Jeremy Harmer
Programming Robots with Ros
William D. Smart & Morgan Quigley & Brian Gerkey
The Encyclopedia of Philosophy
Donald M. Borchert
Encyclopedia of Dinosaurs & Prehistoric Life
Kitty Blount & Maggie Crowley
Hymns to an unknown God : awakening the spirit in everyday life
Sam Keen