poland china history, duroc-jersey history, chester white history, hampshire history, duroc-jersey hogs, chester white hogs, hampshire hogs
Agricultural Extension Service, South Dakota State College of Agriculture and Mechanic Arts
In this circular, created by the Agricultural Extension Service at South Dakota State College, includes information in regards to the history of hogs in Poland China, Duroc-Jersey, Chester White, and Hampshire history. This is provided through the guidance of the Agricultural Department during the year 1923.
Banker, Paul P., "Early History of Poland Chine, Duroc-Jersey, Chester White and Hampshire Breeds of Hogs" (1923). SDSU Extension Circulars. 103.