APA aipamena

Isichei, A. O. (2014). Nitrogen in Savanna Grass and Litter.

Chicago Style aipamena

Isichei, Augustine O. Nitrogen in Savanna Grass and Litter. 2014.

MLA aipamena

Isichei, Augustine O. Nitrogen in Savanna Grass and Litter. 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.