Legislation and policy mineral aggregate resource management in Ontario, Canada

1979 ◽  
Vol 1 (3) ◽  
pp. 101-111 ◽  
Author(s):  
S. E. Yundt ◽  
B. P. Messerschmidt
Geologija ◽  
2004 ◽  
Vol 47 (1) ◽  
pp. 99-108 ◽  
Author(s):  
V. Slavko Šolar ◽  
Deborah J. Shields ◽  
William H. Langer

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