Murray, Haydn H.  1924- <br/><br/>
Pennsylvanian underclays: potential bonding clays for use in foundries. 

 - Bloomington,  1957. 
 - 27 p. 
<br/><br/>"Literature cited": p. 27. 
<br/><br/><label>LCCN: </label>gs 58000173  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clay--Indiana.
<br/><br/><label>LC Class. No.: </label>QE109  / .A3 no. 11