Otis, Richard J. <br/><br/>
The design of small bore sewer systems /  
Richard J. Otis and D. D uncan Mara. 
 - Washington, D.C. :    International Bank for Reconstruction and Deve lopment,    1985. 
 - iv, 52 p. :    ill. ;    28 cm. 
 - TAG technical note ;    no. 14 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Sewerage -- Design and construction.