Making sense :  a student's guide to research and writing : geography & environmental sciences / 
Margot Northey, David B. Knight. 
 - 5th ed. 
 - Toronto:  Oxford University Press,  2012. 
 - v,327 P.:  ill.; 
<br/><br/><label>ISBN: </label>9780195445824 
<br/><br/><label>LC Class. No.: </label>G74 2012