TY  - BOOK
AU  - Hammer, Mark J. 
TI  - Water and wastewater technology
SN  - 0139501061
AV  - TD 345 .H25 1991 
PY  - 1991///
CY  - Englewood Cliffs, New Jersey
PB  - Regents/ Prentice Hall
N1  - Includes bibliographical references and index
ER  -