Tohutoro APA (7th ed.)
Webby, B. D. (2004). The great Ordovician biodiversification event. Columbia University Press.
Tohutoru Kātū Chicago (17th ed.)
Webby, B. D. The Great Ordovician Biodiversification Event. New York ; Chichester, England: Columbia University Press, 2004.
Tohutoro MLA (9th ed.)
Webby, B. D. The Great Ordovician Biodiversification Event. Columbia University Press, 2004.
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