Mara, D. D. <br/><br/>
Seminar of sewage treatment: department of civil engineering 
D. D. Mara 
 - Nairobi  : University of Nairobi  1973 
 - Various pagings  30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage<br/>Purification<br/>Industries
<br/><br/><label>LC Class. No.: </label>EAF QTO TD745.N3