Design and operation of septic tanks : proceedings [of the] Seminar held in London, england, 27 October - 1 November 1952. 

 - 122p. 
 - (WHO monograph series ; no. 18). .
<br/><br/><label>ISBN: </label>92-4-140018-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Congresses--Europe<br/>Refuse disposal--Congresses--Europe