00298nam a22000977a 4500082001800000100002300018245006600041260002400107300000700131650006200138  a633.18 THO/CO  aDr.C George Thomas  aCommon Weeds Of Rice Ecosystem In Kerala And Their Management  aThrissurbKAUc1998  a80  acommon weeds of rice ecosystem in Keralaaweed management