TY  - BOOK
AU  - Mara, Duncan
TI  - Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture: measures for public health protection 
SN  - CSMCH1014
U1  - 628.3623 
PY  - 1989///
CY  - Geneva
PB  - World Health Organization
KW  - Sewage
ER  -