00425nam a2200133Ia 4500008004100000082002100041100002400062245003600086260003300122300000800155942000700163952010400170999001700274140113s9999    xx            000 0 und d  a631.11(213)   L1  a"Hans, Ruthenberg."  aFarming system in the  Tropics   a1971bCalender PresscOxford  a313  cBK  00104070aVTLbVTLd2014-01-13l0o631.11(213)   L1pVBK1820r2014-01-13 00:00:00w2014-01-13yBK  c58499d58499