Douglas, D., & Davies, J. (1980). Douglas of the forests: The North American journals of David Douglas. University of Washington Press.
Style de citation Chicago (17e éd.)Douglas, David, et John Davies. Douglas of the Forests: The North American Journals of David Douglas. Seattle: University of Washington Press, 1980.
Style de citation MLA (8e éd.)Douglas, David, et John Davies. Douglas of the Forests: The North American Journals of David Douglas. University of Washington Press, 1980.
Attention : ces citations peuvent ne pas être correctes à 100%.