APA (7th ed.) Citation

Ellyard, D., & Tirion, W. (2001). The southern sky guide (2nd ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Ellyard, David, and Wil Tirion. The Southern Sky Guide. 2nd ed. Cambridge ; New York: Cambridge University Press, 2001.

MLA (9th ed.) Citation

Ellyard, David, and Wil Tirion. The Southern Sky Guide. 2nd ed. Cambridge University Press, 2001.