APA (7th ed.) Citation

Aristòtil, 3. a. a., & Guthrie, W. K. C. (1971). On the heavens. William Heinemann.

Chicago Style (17th ed.) Citation

Aristòtil, 384 aC-322 aC, and W. K. C. Guthrie. On the Heavens. London: William Heinemann, 1971.

MLA (9th ed.) Citation

Aristòtil, 384 aC-322 aC, and W. K. C. Guthrie. On the Heavens. William Heinemann, 1971.