Water treatment plant operation 
V.W. Langworthy, series editor 
 - [Ann Arbor, Mich.]  Ann Arbor Science Publishers  c1981 
 - 4 v.  ill.  23 cm. 
<br/><br/>Contents: [1] Review manual for operators / by W.E. Brown, R.S. Sacks -- [2] Mathematics for operators / by E.J. Way -- [3] Hydraulics for operators / by W. Elgar Brown -- [4] Chemistry for operators / by R.L. Fountain 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water treatment plants<br/>Water--Purification
<br/><br/><label>Dewey Class. No.: </label>628.3