Games and Mathematics: Subtle Connections
David Wells
Optics: Learning by Computing, with Examples using MathCad
Karl Dieter Moeller
The Growth of Logical Thinking From Childhood to Adolescence: ...
Jean Piaget & Bärbel Inhelder
Articulatory Phonetics: Tools for Analyzing the World's Languages
Anita C. Bickford & Rick Floyd
The Works of John Locke in 9 volumes, vol. 1 (1689)
John Locke
Adam Smith
James R. Otteson