1. American Standard of Perfection;American Poultry Association,1983
2. Genetics of buff and related color patterns in the fowl;Brumbaugh;Poultry Sci.,1966
3. A “new” allele at the C pigment locus in the fowl;Brumbaugh;J. Hered.,1983
4. Campo, J.L. and F. Orozco, 1982. Conservation and genetical study of Spanish chicken breeds (6). Pages 88–93 in: Proceedings of the 2nd World Congress on Genetics Applied to Livestock Production, Madrid, Spain.
5. A genetic study of the buff columbian color pattern in Prat chickens;Campo;J. Hered.,1984