Tohutoro APA (7th ed.)
Burchfield, J. D. (1990). Lord Kelvin and the age of the earth (University of Chicago Press ed.). University of Chicago Press.
Tohutoru Kātū Chicago (17th ed.)
Burchfield, Joe D. Lord Kelvin and the Age of the Earth. University of Chicago Press ed. Chicago: University of Chicago Press, 1990.
Tohutoro MLA (9th ed.)
Burchfield, Joe D. Lord Kelvin and the Age of the Earth. University of Chicago Press ed. University of Chicago Press, 1990.
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