APA (7th ed.) Citation

Aristotle & Guthrie, W. K. C. (1939). On the heavens. Harvard University Press; W. Heinemann ltd..

Chicago Style (17th ed.) Citation

Aristotle and W. K. C. Guthrie. On the Heavens. Cambridge, Mass. : London: Harvard University Press; W. Heinemann ltd., 1939.

MLA (9th ed.) Citation

Aristotle and W. K. C. Guthrie. On the Heavens. Harvard University Press; W. Heinemann ltd., 1939.