m J alexandr. (1983). Effect of different directory levels on the post partum reproductive performance of cross- bred cows. College of veterinary and animal sciences.
Chicago Edition Citationm J alexandr. Effect of Different Directory Levels on the Post Partum Reproductive Performance of Cross- Bred Cows. College of veterinary and animal sciences, 1983.
MLA引文m J alexandr. Effect of Different Directory Levels on the Post Partum Reproductive Performance of Cross- Bred Cows. College of veterinary and animal sciences, 1983.
警告：這些引文格式不一定是100％准確.