1. A method for distinguishing the sex of young chicks;Dunn;Connecticut (Storrs) Agr. Exp. Sta. Bul.,1923
2. Recherches sur l'organogenèse des glandes sexuelles chez les oiseaux;Firket;Arch, de Biol.,1914
3. The rudimentary copulation organ of male chicken and its use for determining sex at hatching;Masui;Proc. Six. Intern. Genet. Congress.,1932
4. Genetic studies in poultry, IV;Punnet;Jour. Genetics.,1921