Bituminous Sands in Alberta Tar Sands
19 July, 2009 
GP01UMF 
Bituminous Sands in Alberta Tar Sands 
★★★★★★ (B) 
Bituminous Sands in Alberta Tar Sands
19 July, 2009 
GP01UMG 
Bituminous Sands in Alberta Tar Sands 
★★★★ (E) 
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