00392nam a2200133Ia 4500008004100000020001500041082002300056100001400079245005800093260004800151650002000199650001900219650002000238220204s9999    xx            000 0 und d  a8185680248  a632.51.581.52bRAJ  aRaju, R A 0aField manual for weed ecology and herbicidal research  aUdaipurbAgrotech Publishiing Academyc1997  aWeed autecology  aWeed herbarium  aWeed spnecology