Unknown Binding
(Distributed by M. Cavendish, Jan. 1, 1987)
Describes various types of microscopes and how they function in helping us see details of the living and non-living world that are invisible to the naked eye.
Hardcover
(Distributed by Marshall Cavendish, March 15, 1988)
Examines cultures that live near rivers and lakes, from the industrialized societies along the Rhine and Volga Rivers to the Uru of Lake Titicaca who follow ancient ways of life. Also discusses ways in which commercialization and pollution threaten our fresh water resources.