00281nam a2200121Ia 4500008004100000082001400041100001500055245001700070260003400087300001500121600001300136650001000149140224s9999    xx            000 0 und d  a632.51 L7  aThakur, C.  aWeed Science  aNew DelhibMetropolitanc1977  axiii,481p.  aC.Thakur  aWeeds