005490000a22001810004500020001500000060000800015082001600023100002100039100002200060245003200082260002000114260000900134300000800143650006400151942000700215999001900222952012600241  a0582300002  a100  a630.912 BRI  aBriggs,  David J  aCourtney, Frank M  aAgriculture and environment  aLondon, Longman  c1985  a442  aAgriculture- environment/ Agricultural economy/ Agriculture  cBK  c355342d355342  00104070aKAUCOAVbKAUCOAVd2014-05-02l1o630.912 BRIpKAU_COAV-21085r2020-02-03 00:00:00s2020-01-29w2014-05-02yBK