Useful Mathematical and Physical Formulae
Matthew Watkins
Logic & Language
Neville Dean
Mathematical Methods for Physicists
George Brown Arfken & Hans-Jurgen Weber
Experiment, Speculation and Religion in Early Modern Philosophy
Peter R. Anstey & Alberto Vanzo
The Conflict in Ukraine: What Everyone Needs to Know
Serhy Yekelchyk
Encyclopedia of World War II
Alan Axelrod & Jack A. Kingston