Price, Joanne Kirkpatrick. <br/><br/>
Basic math concepts for water and wastewater plant operators / 

 - [2nd ed.] 
 - Lancaster :  Technomic Pub. Co.,  c1991. 
 - xii, 355 p. :  ill. ; 
<br/><br/><label>ISBN: </label>0877628084 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage<br/>Sewage disposal<br/>Sewage<br/>Sewage disposal<br/>Water<br/>Water quality management<br/>Water<br/>Water quality management
<br/><br/><label>Dewey Class. No.: </label>513.1