Piaget's Theory, a Primer
John L. Phillips
Discrete Mathematical Structures
G. Shankar Rao
Advanced Mathematics 2
C. W. Celia & A. T. F. Nice & K. F. Elliott
Hegel on Freedom and Authority
Renato Cristi
Boolean Semantics for Natural Language
Edward L. Keenan & L. M. Faltz
Illustrated Seamanship
Ivar Dedekam
Illustrated Nautical Manuals (3)