00454nam a2200157Ia 4500008004100000082001800041100002000059245004200079260004500121300000800166650004100174650003400215653001600249653001300265653001800278170901s1971    xx            000 0 und d  a630.973bC42P  aClawson, Marion 0aPolicy Directions for U.S Agriculture  aBombaybAllied Publishers Pvt Ltd.c1971  a398  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgriculture  aPlanning  aUnited States