Toward a Calculus of Concepts
Willard van Orman Quine
CK-12 Trigonometry - Second Edition
Ck-12 Foundation
The Gardner Heist
Ulrich Boser
Encyclopedia of White-Collar and Corporate Crime
Lawrence M. Salinger
Semiotics in Mathematics Education
Norma Presmeg & Luis Radford & Wolff-Michael Roth & Gert Kadunz
The Enneagram of Emotional Intelligence
Scott Allender