TY - BOOK ED - United States. TI - Structure of six farm input industries: petroleum, farm machinery and equipment, fertilizers, chemical pesticides, livestock feeds, farm credit T2 - [United States. Dept. of Agriculture. Economic Research Service] ERS AV - HD9475.U52 A5 U1 - 338.1/0973 PY - 1968///] CY - [Washington] PB - U.S. Dept. of Agriculture, Economic Research Service KW - Farm supply industries KW - United States KW - Agricultural industries N1 - Cover title; Includes bibliographies ER -