Voisin, A. (1988). Grass productivity. Island Press.
Chicago-čujuhus (17. p.)Voisin, André. Grass Productivity. Washington, D.C.: Island Press, 1988.
MLA-čujuhus (9. p.)Voisin, André. Grass Productivity. Island Press, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.