Style de citation APA (7e éd.)

Dietrich, W. (2003). Natural Grace: The Charm, Wonder, and Lessons of Pacific Northwest Animals and Plants. University of Washington Press.

Style de citation Chicago (17e éd.)

Dietrich, William. Natural Grace: The Charm, Wonder, and Lessons of Pacific Northwest Animals and Plants. Seattle: University of Washington Press, 2003.

Style de citation MLA (8e éd.)

Dietrich, William. Natural Grace: The Charm, Wonder, and Lessons of Pacific Northwest Animals and Plants. University of Washington Press, 2003.