APA-viite (7. p.)
Sawyer, J. O. (2006). Northwest California: A natural history. University of California Press.
Chicago-viite (17. p.)
Sawyer, John O. Northwest California: A Natural History. Berkeley: University of California Press, 2006.
MLA-viite (9. p.)
Sawyer, John O. Northwest California: A Natural History. University of California Press, 2006.
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