TY  - GEN
ED  - AMERICAN PUBLIC HEALT ASSOCIATION (USA).
TI  - STANDARD METHODS : : FOR THE EXAMINATION OF  WATER AND WASTEWATER/ 
SN  - 0-87553-161-X
U1  - C 628.161 S82 
PY  - 1989///
CY  - USA: 
PB  - AMERICAN PUBLIC HEALTH ASSOCIATION
KW  - 1.AGUA - ANALISIS
ER  -