Nature, an environmental yardstick
By: William T. Pecora
Contributors: Geological Survey (U.S.)
Publisher: U.S. Dept. of the Interior, Geological Survey; For sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1972
Place of publication: [Washington]
Language: eng
Number of pages: 16
Subjects: Pollution
Notes: Includes bibliographical references (p. 14)