APA-viite (7. p.)
Roberts, C. (2007). The unnatural history of the sea. Island Press/Shearwater Books.
Chicago-viite (17. p.)
Roberts, Callum. The Unnatural History of the Sea. Washington, DC: Island Press/Shearwater Books, 2007.
MLA-viite (9. p.)
Roberts, Callum. The Unnatural History of the Sea. Island Press/Shearwater Books, 2007.
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