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.
استشهاد بنمط شيكاغوm 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 استشهادm J alexandr. Effect of Different Directory Levels on the Post Partum Reproductive Performance of Cross- Bred Cows. College of veterinary and animal sciences, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.