TY  - BOOK
AU  - Gainey, Percy Leigh.
TI  - Microbiology of water and sewage
U1  - 628.16 
PY  - 1952///
CY  - New York
PB  - Prentice Hall
KW  - Agua
KW  - Análisis
KW  - Bacteriologia
KW  - Purificacion
ER  -