Agriculture in the environment
Series: ERS -- 481
Publisher: U.S. Dept. of Agriculture, Economic Research Service
Published: 1971
Place of publication: Washington, D.C
Language: eng
Number of pages: 11
Subjects: Agricultural ecology
Notes: Cover title.

"Reprinted from the Farm index, March-June 1971, vol. X nos. 3-6"--p. [2].