APA aipamena

(1997). Annual report 1997 (International Institute of Tropical Agriculture). Nigeria: IITA.

Chicago Style aipamena

Annual Report 1997 (International Institute of Tropical Agriculture). Nigeria: IITA, 1997.

MLA aipamena

Annual Report 1997 (International Institute of Tropical Agriculture). Nigeria: IITA, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.