TY  - BOOK
ED  - U. S. Geological Survey
TI  - A primer on water quality
AV  - PAM TD370.U49 
PY  - 1965///
CY  - Washington : 
PB  - U. S. Government Printing Office
KW  - Water
KW  - Composition
KW  - Water composition
KW  - Water pollution
KW  - Pollution
ER  -