A Brief Introduction to Piaget
Nathan Isaacs
Heidegger's Contributions to philosophy : an introduction
Daniela Vallega-Neu
Concise Encyclopedia of Philosophy of Language
P. Lamarque & Ronald E. Asher
Enzyklopädie der psychoaktiven Pflanzen: Botanik, Ethnopharmakologie ...
Christian Rätsch
Symptoms of Being Human
Jeff Garvin
The Dictionary of Demons: Expanded & Revised
Michelle Belanger