Dyfyniad APA
Underwood, E. J., & Suttle, N. F. (1999). The mineral nutrition of livestock (3rd ed.). CABI Pub..
Dyfyniad Arddull Chicago
Underwood, Eric J., and N. F. Suttle. The Mineral Nutrition of Livestock. 3rd ed. Wallingford, Oxon, UK ; New York: CABI Pub., 1999.
Dyfyniad MLA
Underwood, Eric J., and N. F. Suttle. The Mineral Nutrition of Livestock. 3rd ed. CABI Pub., 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.