Proceedings of the fourth industrial waste conference held al Purdue University september 21-22, 1948 

 - 327 páginas 
 - Extension series ;  no. 68 .
<br/><br/> "sponsor school of civil engineering and technical extension division purdue university lafayette, indiana and division of sanitary engineering indiana state board of health indianapolis, indiana" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Basuras y aprovechamiento de basuras--Congresos
<br/><br/><label>LC Class. No.: </label>TP995.A1  / I52 1948