APA
U.S. Department of Agriculture, . (1989). USSR. Agriculture and Trade Report. Situation and Outlook Series. Washington D.C: .
Chicago
U.S. Department of Agriculture, . 1989. USSR. Agriculture and Trade Report. Situation and Outlook Series. Washington D.C: .
Harvard
U.S. Department of Agriculture, . (1989). USSR. Agriculture and Trade Report. Situation and Outlook Series. Washington D.C: .
MLA
U.S. Department of Agriculture, . USSR. Agriculture and Trade Report. Situation and Outlook Series. Washington D.C: . 1989.