How Do Space Energy Devices Work?
Dr. Horst Eckardt
A Theory of Fun for Game Design
Raph Koster
Aristotelis Categoriae: Liber De Interpretatione
Aristotle
Euripides I: Alcestis, Medea, the Children of Heracles, Hippolytus
Euripides
Linkers and Loaders
John R. Levine