The Nature of Infinitesimals
Peter F. Erickson
Philosophy of Logic: An Anthology
Dale Jacquette
Mathematica® - Kurz und bündig
Stephan Kaufmann
The Origins of the Federal Reserve
Murray Newton Rothbard
Oxford Dictionary of Scientific Quotations
Roy Porter & William F. Bynum
The Merovingians; Kingship, Institutions, Law, and History
Alexander Callander Murray