Spangler, William <br/><br/>
Development of techniques for estmating the bacterial population of sewage sludge / 
by William Spangler [and] Walter Langston 
 - Washington, D.C. :  U.S. Government Printing Office,  1970 
 - Various pagings ;  26 cm. 
 - Water pollution control research series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bacteriology<br/>Bacteria
<br/><br/><label>Dewey Class. No.: </label>589.9