Robbins, W. G. (1997). Landscapes of promise: The Oregon story, 1800-1940. University of Washington Press.
Čikaški stil citiranja (17. izdanje)Robbins, William G. Landscapes of Promise: The Oregon Story, 1800-1940. Seattle: University of Washington Press, 1997.
MLA način citiranja (9. izdanje)Robbins, William G. Landscapes of Promise: The Oregon Story, 1800-1940. University of Washington Press, 1997.
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