El-Jack, M. (1972). Monthly variation in fertility, embryonic mortality and hatchability of four breeds of poultry in the Sudan.
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Cita Chicago Style (17a ed.)
El-Jack, M.H. Monthly Variation in Fertility, Embryonic Mortality and Hatchability of Four Breeds of Poultry in the Sudan. 1972.
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Cita MLA (9a ed.)
El-Jack, M.H. Monthly Variation in Fertility, Embryonic Mortality and Hatchability of Four Breeds of Poultry in the Sudan. 1972.
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