APA aipamena

Hardin,Clifford M. (1969). Overcoming world hunger. Prentice Hall.

Chicago Style aipamena

Hardin,Clifford M. Overcoming World Hunger. USA: Prentice Hall, 1969.

MLA aipamena

Hardin,Clifford M. Overcoming World Hunger. Prentice Hall, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.