Standaard varieties of chickens
Slocum, R.R.
Standaard varieties of chickens - Washington 1919 - 1-32 p. - Chicken, Varieties United States Department of Agriculture. Farmers Bulletin No. 1052 .
Standaard varieties of chickens - Washington 1919 - 1-32 p. - Chicken, Varieties United States Department of Agriculture. Farmers Bulletin No. 1052 .