APA aipamena

Adepetu, J. A. (2013). Soil and Nigerian Food Security. Obafemi Awolowo University Press.

Chicago Style aipamena

Adepetu, J. A. Soil and Nigerian Food Security. Obafemi Awolowo University Press, 2013.

MLA aipamena

Adepetu, J. A. Soil and Nigerian Food Security. Obafemi Awolowo University Press, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.