Guardians of tomorrow
Subtitle: pioneers in ecology
By: [by] S. Carl Hirsch. Illustrated by William Steinel.
Edition: [1st ed.]
Publisher: Viking Press
Published: 1971
Place of publication: New York
Language: eng
Number of pages: 192
Subjects: Ecology -- United States -- History -- Juvenile literature.; Conservation of natural resources -- United States -- History -- Juvenile literature.; Naturalists -- Juvenile literature.; Naturalists.; Conservation of natural resources.
Description: Brief biographies of eight American pioneers in conservation and ecology: Henry David Thoreau, George Perkins Marsh, Frederick Law Olmsted, John Muir, Gifford Pinchot, George Norris, Aldo Leopold, and Rachel Carson.
Notes: Bibliography: p. [181]-182.