APA (7e ed.) Bronvermelding

Voisin, A. (1988). Grass productivity. Island Press.

Chicago (17e ed.) Bronvermelding

Voisin, André. Grass Productivity. Washington, D.C.: Island Press, 1988.

MLA (9e ed.) Bronvermelding

Voisin, André. Grass Productivity. Island Press, 1988.