Mathematics and plausible reasoning, volumes 1 and 2
György Pólya
Riemann Surfaces, Theta Functions, and Abelian Automorphisms ...
Robert D. M. Accola
Complex Analysis
Lars Valerian Ahlfors
Enlightenment: Britain and the Creation of the Modern World
Roy Porter
Die Malik Management Systeme - Grundlagen und Anwendung
Fredmund Malik
Knots
Peter Owen