An Illustrated Manual of Rice-Field Weeds in Sri Lanka (Unesco: Man and the Biosphere National Commitee for Sri Lanka: Publication No. 19)
Chandrasena, J.P.N.R.
An Illustrated Manual of Rice-Field Weeds in Sri Lanka
(Unesco: Man and the Biosphere National Commitee for Sri Lanka: Publication No. 19) - Sri Lanka, The Natural Resources, Energy & Science Authority, 1979, - 185p. 28cm.
An Illustrated Manual of Rice-Field Weeds
Man and the Biosphere National Committee
An Illustrated Manual of Rice-Field Weeds in Sri Lanka
(Unesco: Man and the Biosphere National Commitee for Sri Lanka: Publication No. 19) - Sri Lanka, The Natural Resources, Energy & Science Authority, 1979, - 185p. 28cm.
An Illustrated Manual of Rice-Field Weeds
Man and the Biosphere National Committee
