Geological survey of Canada 

 - [s.l.] :    Department of Energy, Mines and Resources,    1973. 
 - 34 p. :    ill. ;    25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Geological survey -- Canada.
<br/><br/><label>Gov. Doc. Class. No.: </label>G. CANE61 (08)2/73-19