Nostrand, John van  <br/><br/>
The ventilated improved double-pit latrine :  a construction manual for Botswana  
John van Nostrand and James G. Wilson  
 -  Govt of Botswana   1983 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sanitation<br/>Sanitation infrastructure
<br/><br/><label>Dewey Class. No.: </label>R628.45  / VAN N83V