APA (7th ed.) Citation

Flynn, M. (2006). Astronomy: Essential facts about the universe. Barron's Educational Series.

Chicago Style (17th ed.) Citation

Flynn, Mike. Astronomy: Essential Facts About the Universe. Hauppauge, N.Y.: Barron's Educational Series, 2006.

MLA (9th ed.) Citation

Flynn, Mike. Astronomy: Essential Facts About the Universe. Barron's Educational Series, 2006.