APA (7th ed.) Citation

Keel, W. C. (2007). The Road to Galaxy Formation (2. ed.). Springer.

Chicago Style (17th ed.) Citation

Keel, William C. The Road to Galaxy Formation. 2. ed. Berlin [u.a.]: Springer, 2007.

MLA (9th ed.) Citation

Keel, William C. The Road to Galaxy Formation. 2. ed. Springer, 2007.