Isichei, A. O. (2014). Impact of Overgrazing on Agricultural and Rangelands. Unesco.
Chicago Style aipamenaIsichei, A. O. Impact of Overgrazing on Agricultural and Rangelands. Unesco, 2014.
MLA aipamenaIsichei, A. O. Impact of Overgrazing on Agricultural and Rangelands. Unesco, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.