APA (7th ed.) Citation

Rattray, J. M. (1968). The grass cover of Africa (2. print.). FAO.

Chicago Style (17th ed.) Citation

Rattray, J. M. The Grass Cover of Africa. 2. print. Rome: FAO, 1968.

MLA (9th ed.) Citation

Rattray, J. M. The Grass Cover of Africa. 2. print. FAO, 1968.