Cita APA (7th ed.)

Chaisson, E. (1998). Astronomy: A beginner's guide to the universe (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Chaisson, Eric. Astronomy: A Beginner's Guide to the Universe. 2nd ed. New Jersey: Prentice Hall, 1998.

Cita MLA (9th ed.)

Chaisson, Eric. Astronomy: A Beginner's Guide to the Universe. 2nd ed. Prentice Hall, 1998.