00439nam a2200181Ia 4500 170901s1977 xx 000 0 und d 0126349509 338.173 S27C Seigler, David S. Crop Resources New York Academic Press 1977 233 Economics Social sciences Cultivated plants Field crops ddc BK 3261 3261 0 0 ddc 0 0 RAU RAU 2017-10-18 IBH, Patna USD 19.00 0 338.173 S27C 24899 2017-10-18 1981-03-30 BK