APA-viite (7. p.)
Burke, T. E. (2013). Land snails and slugs of the Pacific Northwest. Oregon State University Press.
Chicago-viite (17. p.)
Burke, Thomas E. Land Snails and Slugs of the Pacific Northwest. Corvallis: Oregon State University Press, 2013.
MLA-viite (9. p.)
Burke, Thomas E. Land Snails and Slugs of the Pacific Northwest. Oregon State University Press, 2013.
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