The Stanford Mathematics Problem Book: with Hints and Solutions
Jeremy Kilpatrick & György Pólya
Social stratification systems as value orientation systems of ...
George L. Wilber
Ireland and the British Empire
Kevin Kenny
Das Wahre, Schöne, Gute: Geist und Kultur im 3. Jahrtausend
Kenneth E. Wilber
Partial Differential Equations and Complex Analysis
Steven G. Krantz
Natural Language Understanding
James Allen