APA (7th ed.) Citation

Αριστοτέλης, 3. π. π., & Guthrie, W. K. C. (1939). On the heavens. Harvard Uninersity Press.

Chicago Style (17th ed.) Citation

Αριστοτέλης, 384 π.Χ.-322 π.Χ, and W. K. C. Guthrie. On the Heavens. Cambridge, MA: Harvard Uninersity Press, 1939.

MLA (8th ed.) Citation

Αριστοτέλης, 384 π.Χ.-322 π.Χ, and W. K. C. Guthrie. On the Heavens. Harvard Uninersity Press, 1939.