Encyclopedia of Society and Culture in the Ancient World
Peter I. Bogucki
Change and Habit
Arnold J. Toynbee
Writings of Leon Trotsky (1930-31)
Leon Trotsky
Ggplot2
Hadley Wickham
Use R! (1)
The Ayn Rand Letter (June to November 1972)
Ayn Rand
The Tribe (Societas)
Ben Cobley