1. A study of the time factor in egg production;Atwood;W.Va. Agr. Exp. Sta. Bul.,1929
2. The effect of restricted feeding time on food intake, body weight, and egg production;Burmester;Poult. Sci.,1939
3. Some effects of artificial light on time of laying;Card;(Abstract) Poult. Sci.,1937
4. Management of Leghorn hens and pullets with and without artifical lights;Payne;Poult. Sci.,1934
5. Influence of light on ovulation in the fowl;Warren;J. Exp. Zool.,1936