Appell, Herbert R. <br/><br/>
Conversion of urban refuse to oil (BM-TPR 25) 
Appell, Herbert R. 
 - Washington  Bureau of mines  1970 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONVERSION DE DESECHOS<br/>PETROLEO
<br/><br/><label>Universal Decimal Class. No.: </label>622