Keypour, E. (1989). Nutritional requirements of lactating cows. , 2(1), 27-39.
E. Keypour. "Nutritional requirements of lactating cows". , 2, 1, 1989, 27-39.
Keypour, E. (1989). 'Nutritional requirements of lactating cows', , 2(1), pp. 27-39.
Keypour, E. Nutritional requirements of lactating cows. , 1989; 2(1): 27-39.


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