V Mary John. (1992). Parecentage control in cattle using blood types. College of veterinary and animal sciences.
Chicago ZitierstilV Mary John. Parecentage Control in Cattle Using Blood Types. College of veterinary and animal sciences, 1992.
MLA ZitierstilV Mary John. Parecentage Control in Cattle Using Blood Types. College of veterinary and animal sciences, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.