Kirkpatrick, Joanne <br/><br/>
Mathematics for water and waste water treatment plant operators 

 - Michigan  Ann Arbor Publishers  1973 
 - various pagings  26cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sanitary engineering
<br/><br/><label>LC Class. No.: </label>TD153.K57