Natural Elites, Intellectuals, and the State
Hans-Hermann Hoppe
The Works of John Locke in 9 volumes, vol. 7 (1824)
John Locke
The Study of Language - Sixth Edition
George Yule
The Linear Algebra Survival Guide: Illustrated with Mathematica®
Fred Szabo
Piaget, Critique and Reassessment
David Cohen
CRC Concise Encyclopedia of Mathematics, Second Edition
Eric W. Weisstein