00330nam a2200097Ia 4500008004100000100001300041245011700054260003200171300001200203700001700215220216s9999    xx            000 0 und d  aMathew M 2aA study on the comparative effect of some pre-emergence weedicides on the control of weeds in rubber plantations  bRubber Board Bulletinc1975  a136-137  aPunnoose K I