Biological control :
spreading the benefits.

Description

Related Names: United States. Animal and Plant Health Inspection Service.
Language(s): English
Published: [Washington, D.C.?] : U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 1989.
Edition: Slightly rev. Nov. 1989.
Subjects: Agricultural pests > Agricultural pests / Biological control > Agricultural pests / Biological control / United States.
Note: "Issued July 1987"--P. [12].
Shipping list no.: 90-162-P.
Physical Description: 11, [1] p. : col. ill. ; 14 x 22 cm.
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