Environmental improvement
Subtitle: air, water, and soil
By: edited by Ralph W. Marquis.
Contributors: Graduate School, USDA.
Publisher: Graduate School, U.S. Dept. of Agriculture
Published: 1966
Place of publication: [Washington]
Language: eng
Number of pages: 105
Subjects: Pollution.
Notes: Text of the lectures presented at the lecture series, Environmental improvement, U.S. Dept. of Agriculture, May 1966.