Toward a Calculus of Concepts
Willard van Orman Quine
Commands: A Cross-Linguistic Typology
R. M. W. Dixon & Alexandra Y. Aikhenvald
Concise Oxford Dictionary of Quotations
Susan Ratcliffe
Trace Ideals and Their Applications
Barry Simon
The Thinker's Thesaurus
Peter E. Meltzer
Guitar Scales and Modes Trainer
Robert Farrell