Excreta disposal for rural areas and small communities
Wagner, Edmund G.
Excreta disposal for rural areas and small communities - - Geneva World Health Organization, 1958 - 187 p. 24 cm - ISI 10236 : part - 6 : 1982 .
1
Excretion
628.3 Wag
Excreta disposal for rural areas and small communities - - Geneva World Health Organization, 1958 - 187 p. 24 cm - ISI 10236 : part - 6 : 1982 .
1
Excretion
628.3 Wag