Cita APA (7th ed.)

Burchfield, J. D. (1975). Lord Kelvin and the age of the earth. Science History Publications.

Cita Chicago (17th ed.)

Burchfield, Joe D. Lord Kelvin and the Age of the Earth. New York: Science History Publications, 1975.

Cita MLA (9th ed.)

Burchfield, Joe D. Lord Kelvin and the Age of the Earth. Science History Publications, 1975.