Our fragile earth
By: [by] Elizabeth S. Helfman.
Publisher: Lothrop, Lee & Shepard Co.
Published: 1972
Place of publication: New York
Language: eng
Number of pages: 160
Subjects: Soil conservation -- Juvenile literature.; Agriculture -- Juvenile literature.; Nature -- Effect of human beings on -- Juvenile literature.; Soil conservation.
Description: Discusses man's abuse of the soil and its consequences and some of the ways that soil may be rehabilitated.
Notes: Bibliography: p. 156-157.