APA (7th ed.) Citation

Reidy, D., & Wallace, K. (1987). The southern sky: A practical guide to astronomy. Allen & Unwin.

Chicago Style (17th ed.) Citation

Reidy, David, and Ken Wallace. The Southern Sky: A Practical Guide to Astronomy. Sydney: Allen & Unwin, 1987.

MLA (9th ed.) Citation

Reidy, David, and Ken Wallace. The Southern Sky: A Practical Guide to Astronomy. Allen & Unwin, 1987.