Sweeney, John W. <br/><br/>
Lightweight aggregates  expansion propertiesof selected Iowa shales, clays and loess 
Sweeney, John W. 
 - Washington  Bureau of mines  1964 
 - RI  6393 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>shale<br/>loess<br/>arcilla
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Iowa
<br/><br/><label>Universal Decimal Class. No.: </label>549