Gaya APA

OPALKO, A, I, [., WEISFELD, L, I, [. (2015). ECOLOGICAL consequences of increasing crop productivity : . Toronto: Apple Academic Press.

Gaya MLA

OPALKO, Anatoly, Iv., [ed.]., WEISFELD, Larissa, I., [ed.]. "ECOLOGICAL consequences of increasing crop productivity :". Toronto: Apple Academic Press, 2015. Buku.