The gypsum industry of Canada, 
by L. Heber Cole. 
 - Ottawa,  F. A. Acland, printer,  1930. 
 - vii, 164 p.  tables, diagrs. XX pl., 2 fold. maps, fold. tables.  25 cm. 
<br/><br/> At head of title: Canada.  Dept. of Mines.  Mines Branch.  In lower right corner no. 714. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 30000213  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gypsum.<br/>Mines and mineral resources--Canada.
<br/><br/><label>LC Class. No.: </label>TN946  / .C33 1930