TY  - BOOK
AU  - Laak, Rein,
TI  - Wastewater engineering design for unsewered areas
SN  - 0250403730
AV  - TD929 L33
PY  - 1980///
CY  - Ann arbor, michigan
PB  - Ann arbor science
KW  - Disposición de aguas residuales rurales
ER  -