APA-viite (7. p.)
Dietrich, W., & Cunningham, B. (2003). Natural grace: The charm, wonder, and lessons of Pacific Northwest animals and plants. University of Washington Press.
Chicago-viite (17. p.)
Dietrich, William, ja Brenda Cunningham. Natural Grace: The Charm, Wonder, and Lessons of Pacific Northwest Animals and Plants. Seattle, Washington ; London, England: University of Washington Press, 2003.
MLA-viite (9. p.)
Dietrich, William, ja Brenda Cunningham. Natural Grace: The Charm, Wonder, and Lessons of Pacific Northwest Animals and Plants. University of Washington Press, 2003.
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