TY  - BOOK
AU  - Hem,John D.
TI  - Study and Interpretation of the Chemical Characteristics of Natural Water: geological survey water-supply paper 1473 ; a review of chemical ,geologic and hydrologic principles and processes that control the composition of natural water ,with methods for studying and interpreting chemical analyses 
U1  - 553.7 23
PY  - 1970///
CY  - Washington D.C.
PB  - United States Government Printing Office
KW  - Natural water
KW  - Chemical composition
N1  - Includes bibliographical references (p. 338- 358) and index
ER  -