Spellman Frank R <br/><br/>
Microbiology for water and wastewater operators 

 - Pennsylvania  Technomic publishing  1997 
 - 193 
<br/><br/><label>ISBN: </label>1566764394 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microbiology--Bacteria--Wastewater
<br/><br/><label>Dewey Class. No.: </label>579  / SPE