000 004100000a22001450004500
060 _a100
082 _a632.58 GUP
100 _aGupta, O P
245 _aAquatic weeds: their menace and control: a text book and manual
260 _aNew Delhi, Today & Tomorrow s printers & Publishers
260 _c1979
300 _a234
650 _aAquatic weeds/ Weed science/ Aquatic weeds- Herbicides
942 _cBK
999 _c219801
_d219801