000
002960000a22001090004500
245
_a
Making aquatic weeds useful : some perspectives for developing countries
110
_a
National Academy of Sciences
260
_a
Washington
_b
NAS
_c
1976
080
_a
633.2
_b
N3
041
_a
EN
942
_c
BK
999
_c
109887
_d
109887