Porsild, A. E. <br/><br/>
Rocky Mountain wild flowers / 
A. E. Porsild, illustrations by Dagny Tande Lid. 
 - Ottawa :   National Museum of Canada,  1974. 
 - 454 p. :  ill. ;  18 cm. 
 - Natural history series,   No. 2. .
 - 58 (NLA) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wild flowers --Canada
<br/><br/><label>Universal Decimal Class. No.: </label>58 (NLA)