Feldspar in Canada, 
by Hugh S. de Schmid. 
 - Ottawa,  Government Printing Bureau,  1916. 
 - viii, 126 p.  XXII pl., fold. plan, fold. map, diagrs.  25 cm. 
<br/><br/> "No. 401." 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>gs 17000135  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Feldspar.
<br/><br/><label>LC Class. No.: </label>TN948.F3  / C3