Dyfyniad APA
ebrary, Inc, Hristov, A. N., & Pfeffer, E. (2005). Nitrogen and phosphorus nutrition of cattle: Reducing the environmental impact of cattle operations. CABI Pub..
Dyfyniad Arddull Chicago
ebrary, Inc, Alexander N. Hristov, and Ernst Pfeffer. Nitrogen and Phosphorus Nutrition of Cattle: Reducing the Environmental Impact of Cattle Operations. Wallingford, UK ; Cambridge, MA: CABI Pub., 2005.
Dyfyniad MLA
ebrary, Inc, et al. Nitrogen and Phosphorus Nutrition of Cattle: Reducing the Environmental Impact of Cattle Operations. CABI Pub., 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.