Ecology of water weeds in the neotropics ; and ecological survey of the aquatic weeds Eichhornia crassipedes and Salvinia species, and their natural enemies in the neotropics /
Mitchell, D. S.
Thomas, P. A.
International Hydrological Decade.
Paris : Unesco,
1972.
"A contribution to the International Hydrological Decade."
Aquatic weeds.
Weeds