APA aipamena

Duncan, E. R. (1977). Dimensions of World Food Problems. Iowa State University Press.

Chicago Style aipamena

Duncan, E. R. Dimensions of World Food Problems. Ames: Iowa State University Press, 1977.

MLA aipamena

Duncan, E. R. Dimensions of World Food Problems. Iowa State University Press, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.