The how and why wonder book of ecology Book 581/Completed:
LC Control Number:
New York, Grosset & Dunlap 
Grossman, Mary Louise, joint author.
47 p. illus. (part col.) 29 cm.
Describes the habitats and interrelationships of the various plants and animals of the forests, grasslands, deserts, mountains, and coastlines and discusses some of the ways in which the balance of nature in these areas is being destroyed.