Gaya APA

Yeung, J, &, P. (1985). Livestock products in the third world: past trends and projections to 1990 and 2000 . Washington,D.C.: International food policy Research Institute.

Gaya MLA

Yeung, J.S.Sarma, &, Patrick. "Livestock products in the third world: past trends and projections to 1990 and 2000". Washington,D.C.: International food policy Research Institute, 1985. Text.