Essays in Sociological Theory - Revised Edition
Talcott Parsons
Philosophical Logic
John P. Burgess
Introduction to the Integral Approach (and the AQAL Map)
Kenneth E. Wilber
A Treatise on Probability
John Maynard Keynes
A Grammar of contemporary English
Jan Svartvik & Geoffrey N. Leech & Randolph Quirk & Sidney Greenbaum
Faces of the enemy : reflections of the hostile imagination
Sam Keen