Language Evolution
Morten H. Christiansen & Simon Kirby
Funk & Wagnalls New Encyclopedia
Leon L. Bram & Robert S. Phillips & Norma H. Dickey
A Philosophy of the Unsayable
William Franke
Volume 13: Alchemical Studies
Carl Gustav Jung
1+1=2: Humanity's Prime Directive
Max Lee
The Secret Connexion
Galen Strawson