00635 a2200193 4500 9251025428 631.51 GOD 21788 34081 Godwin, R. J Agricultural engineering in development tillage for crop production in areas of low rainfall Rome Food and Agriculture Organization of the United Nations 1990 1990 vi,123p. 30cm FAO agricultural services bulletin 83 Agricultural and related technologies Soil working Cultivation and harvesting Specific techniques L 49228 49228 0 0 0 0 LEN MKDL MKDL LEN 2009-08-10 0 631.51GOD 52599 2009-08-10 00:00:00 0.00 2016-10-31 L