00323nam a2200109Ia 4500008004100000040003800041100001500079245005600094260003100150300001600181653001600197211214s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aWallace, T 0aInsecticides and colonial agricultural development.  bBUTTER WORTHaLONDONc1954  aX, 167 p p.  aAGRICULTURE