APA-viite (7. p.)
Tough, F. (1996). 'As their natural resources fail': Native peoples and the economic history of northern Manitoba, 1870-1930. UBC Press.
Chicago-viite (17. p.)
Tough, Frank. 'As Their Natural Resources Fail': Native Peoples and the Economic History of Northern Manitoba, 1870-1930. Vancouver, BC: UBC Press, 1996.
MLA-viite (9. p.)
Tough, Frank. 'As Their Natural Resources Fail': Native Peoples and the Economic History of Northern Manitoba, 1870-1930. UBC Press, 1996.
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