Everett, J., Frederic Newcomb, W., & Rice Victor, A. (1957). Breeding and improvement of farm animals. McGraw Hill Book Company Inc.
Dyfyniad Arddull ChicagoEverett, James, Warwick Frederic Newcomb, and Arthur Rice Victor. Breeding and Improvement of Farm Animals. New York: McGraw Hill Book Company Inc, 1957.
Dyfyniad MLAEverett, James, et al. Breeding and Improvement of Farm Animals. McGraw Hill Book Company Inc, 1957.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.