Earth’s Materials: Minerals and Rocks: By Gautam Sen. Prentice Hall, Upper Saddle River, New Jersey 07458, U.S.A., 2001. 542 + xvii pages. US $68 (hard-cover). ISBN 0–13–081295–1

Tectonic Evolution of South America.: Edited by U.G. Cordani, E.J. Milani, A. Thomaz Filho, and D.A. Campos. 31 st International Geological Congress. Available from Geological Society of America, P.O. Box 9140, Boulder, Colorado 80301-9140, U.S.A. 2000, 854 p., US $60 (paper).