Marcuse: Critical Theory & the Promise of Utopia
Andrew Feenberg & Robert Pippin & Charles P. Webel
Capital: A Critique of Political Economy, Vol. 2 (Penguin)
Karl Marx & Friedrich Engels
Cause as an implication
Newton C.A. Da Costa & Richard Sylvan
Jeff Stiles' Descriptions Of Chord Changes
Jeff Stiles
Existentialism: A Very Short Introduction
Thomas R. Flynn