Sweeney, John W. <br/><br/>
Lightweight aggregates  expansion properties of selected Illinois shales and clays 
Sweeney, John W. 
 - Washington  Bureau of mines  1965 
 - 34 p.   ill., maps  27 cm 
 - RI  6614 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>shale<br/>arcilla
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Illinois
<br/><br/><label>Universal Decimal Class. No.: </label>549