AGRICOLA subject category codes with scope notes.
Contributors: National Agricultural Library (U.S.)
Edition: Rev. Sept. 1988.
Series: PB89-214 803
Publisher: National Agricultural Library
Published: 1989
Place of publication: Beltsville, MD
Language: eng
Number of pages: 119
Notes: Microfiche. Springfield, VA : National Technical Information Service. 2 microfiche.