== NYT resource, with internal links == 

 In Internal Canadian Documents, a Warning on Oil Sands by IAN AUSTEN December 22, 2011, 4:27 PM; excerpt ...  

 internal links  
 *‘Secret’ Environment Canada study warns of oil sands’ impact on habitat, Postmedia News  Dec 22, 2011 – 1:52 PM ET 
 and  
 *'powerpoint presentation'