000
002420000a22001090004500
245
_a
Sanitation in developing countries
100
_a
Pacey, A., ed.
260
_a
New York
_b
Wiley
_c
1978
080
_a
628
_b
S3
041
_a
EN
942
_c
BK
999
_c
111950
_d
111950