00395    a2200121   4500020001500000082001500015100001600030245012200046260003900168300002000207650001000227650003600237  a8187167084  a632.5bGUP  aGupta, O.P.  aModern weed managementbwith special reference to agriculture in the tropics and subtropics b a text book and manual  aBikanerbAgro Botanicac1998g1998  axxi,488p.c25cm  aWeeds  aPlant injuries, diseases, Pests