Schaum's Outline of Advanced Mathematics for Engineers and Scientists
Murray Spiegel
Mathematical Logic
Heinz-Dieter Ebbinghaus & Jörg Flum & Wolfgang Thomas
Philosophisch-pol[..] Profile
Jürgen Habermas
Useful Dictionary of Adjectives With Prepositions
Martin H. Manser
Philosophy: Feminism
Carol Hay
Beyond Good and Evil: Prelude to a Philosophy of the Future
Friedrich Wilhelm Nietzsche