Concise Encyclopedia of Languages of the World
E. K. Brown & Sarah Ogilvie
A Dictionary of Biology
Robert Hine
Worldmark Encyclopedia of National Economies - Americas
Sara Pendergast & Tom Pendergast
The Riemann Approach to Integration: Local Geometric Theory
Washek F. Pfeffer
Epistemology: The Key Thinkers
Stephen Hetherington
Geochemical Prospecting for Thorium and Uranium Deposits
Robert William Boyle