TY  - GEN
AU  - 
TI  - Wastewater engineering design for unsewered areas / 
SN  - 877624623
U1  - 628.3 
PY  - 1986///
CY  - Lancaster: 
PB  - Technomic Publishing
KW  - AGUAS RESIDUALES
KW  - TRATAMIENTO
KW  - TAMQUES SEPTICOS
KW  - DISPOSICION DE AGUAS RESIDUALES
ER  -