TY  - BOOK
AU  - Hirsch,A.Adler
TI  - Manual for water plant operators
PY  - 1945///
CY  - Inc. : Brooklyn, New York
PB  - Chemical Pub. Co.
KW  - Water
KW  - supply engineering
KW  - Purification
N1  - 'An outgrowth of the traveling school for water and sewerage system operators, conducted by the Louisiana state Department of education, Trade and industrial education division.'-Pref; 'Useful literature': p. 357-362
ER  -