How to Solve It: A New Aspect of Mathematical Method
György Pólya
The War God's Own
David Weber
What Functions Explain: Functional Explanations and Self-Responding ...
Peter McLaughlin
American Universities and Colleges Two Volumes
American Univerisites & Colleges
Epistemology: A Guide
John Turri
Pure Mathematics for Advanced Level
Brian Desmond Bunday & Henry Mulholland