TY - BOOK AU - Cole,C.G. ED - United States. TI - History of hog cholera research in the U.S. Dept. of Agriculture, 1884-1960 AV - S21 .A74 no. 241 PY - 1962/// CY - Washington, D.C. PB - Agricultural Research Service, U.S. Dept. of Agriculture KW - Classical swine fever KW - History N1 - Includes bibliographies ER -