Ecology: man's effects on his environment and its mechanisms.
By: Illustrated by Richard Cuffari.
Contributors: Cuffari, Richard, 1925- illus.
Series: A First book
Publisher: Watts
Published: 1971
Place of publication: New York
Language: eng
Number of pages: 96
Subjects: Ecology -- Juvenile literature; Nature -- Effect of human beings on -- Juvenile literature; Nature -- Effect of human beings on; Ecology
Description: Discusses the basic principles of ecology with emphasis on the way man has changed his environment.
Notes: Bibliography: p. 94.