Spellman <br/><br/>
Mathematics Manual for Water and Wastewater Treatment Plant Operators, Second Ed. (P/b) / 
Spellman 
 - 2nd edition 
 -  T & F (CRC) ,  2014 
 - 294 pages 
<br/><br/><label>ISBN: </label>9781482224252 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science
<br/><br/><label>Dewey Class. No.: </label>628.162  / SPE