APA aipamena

(1982). IITA research highlights 1981. Nigeria: The Institute.

Chicago Style aipamena

IITA Research Highlights 1981. Nigeria: The Institute, 1982.

MLA aipamena

IITA Research Highlights 1981. Nigeria: The Institute, 1982.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.