The Avian Egg, A. L. Romanoff and A. J. Romanoff. 1949, pp. 1-918, John Wiley and Sons, New York.
The Avian Embryo, A. J. Romanoff. 1960, pp. 1-305, The Macmillian Co., New York.
Avian Physiology, P. D. Sturkle. 1965, Constock Publishing Association, Ithaca, New York.
Biochemistry and Morphogenesis, J. Needham. 1942, pp. 1-785, The Macmillian Co., New York.
Chemical Embryology, J. Needham. 1931 three volumes, pp. 1-2021. The Macmillian Co., New York.
The Double "A" in Biology, Anonymous. Life Magazine, December 7, 1959, Vol. 47, No. 23, pp. 76-80.
The Early Embryology of the Chick, B. M. Patten. 1952, Blakiston Co., Philadelphia and Toronto.
Embryology of the Chick, B. M. Patten. 1952, pp. 1-228, The Blakiston Co., New York.
Fertility and Hatchability of Chicken and Turkey Eggs, Edited by L. W. Taylor. 1949, John Wiley and Sons, Inc., New York.
From Egg to Chick, S. F. Ridlen and H. S. Johnson, K. W. Koelkebeck. 1992, pp. 1-16, Circular LA0950, University of Illinois, Urbana, Illinois.
Hatchery Management, Hartman and Vickers. 1950, pp.1-404, Orange Judd Publishing Co., New York.
An Introduction to Embryology, B. I. Balinsky. 1960, W. B. Saunders Co., Philadelphia and London.
Lillie's Development of the Chick, H. L. Hamilton. 1952, pp. 1-624, Henry Holt & Co., New York.
Wait and See, Constantine Georgiou. 1962, Harvey House, Inc., Irvington on Hudson, New York, (Primary Grades 1-3).
Window Into An Egg, Geraldine Lux Flanagan. 1969, Young Scott Books, New York.
The Wonderful Egg, G. Warren Schloat, JR. 1952, Scribner's Sons, New York.
Note: Some of the above references should be available in your local public school or college libraries.