Study of selections for the size, shape, and color of hens' eggs
Benjamin, Earl W.
Study of selections for the size, shape, and color of hens' eggs - Ithaca 1920 - 191-312 p. - Cornell Agricultural Experime .
Study of selections for the size, shape, and color of hens' eggs - Ithaca 1920 - 191-312 p. - Cornell Agricultural Experime .