(1962). Some Factors Affecting Length of Calving Interval in a Herd of Friesian Cattle in the U.A.R.. test, 2(1), 1-12. doi: 10.21608/ejap.1962.184388

. "Some Factors Affecting Length of Calving Interval in a Herd of Friesian Cattle in the U.A.R.". test, 2, 1, 1962, 1-12. doi: 10.21608/ejap.1962.184388

(1962). 'Some Factors Affecting Length of Calving Interval in a Herd of Friesian Cattle in the U.A.R.', test, 2(1), pp. 1-12. doi: 10.21608/ejap.1962.184388

Some Factors Affecting Length of Calving Interval in a Herd of Friesian Cattle in the U.A.R.. test, 1962; 2(1): 1-12. doi: 10.21608/ejap.1962.184388