Aquatic weeds : their menace and control a text book and manual /
Gupta, O. P.
Aquatic weeds : their menace and control a text book and manual / O.P.Gupta - New Delhi : Today & Tomorrow's Printers & Publishers, 1979 - 272 p. : ill. ; 24cm.
Aquatic weeds--Control--India
Aquatic weeds--India
Aquatic weeds : their menace and control a text book and manual / O.P.Gupta - New Delhi : Today & Tomorrow's Printers & Publishers, 1979 - 272 p. : ill. ; 24cm.
Aquatic weeds--Control--India
Aquatic weeds--India
