The Origin of Species
Charles Darwin
Secrets of the Law of Vibration for Traders
Neall Concord-Cushing
The Philosophy of Social Ecology: Essays on Dialectical Naturalism
Murray Bookchin
Encyclopedia of Personality and Individual Differences
Virgil Zeigler-Hill & Todd K. Shackelford
NLTK: The Natural Language Toolkit - Paper
Steven Bird
Age of Chivalry Or Legends of King Arthur
Thomas Bulfinch