APA aipamena

Isichei, A. O. (2014). Vegetation. Nigerian Environmental Study/Action Team.

Chicago Style aipamena

Isichei, A. O. Vegetation. Nigerian Environmental Study/Action Team, 2014.

MLA aipamena

Isichei, A. O. Vegetation. Nigerian Environmental Study/Action Team, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.