Cita APA

(2004). Astronomy: Essential study partner (Version 2.0.). New York: McGraw-Hill.

Chicago Style Citation

Astronomy: Essential Study Partner. Version 2.0. New York: McGraw-Hill, 2004.

Cita MLA

Astronomy: Essential Study Partner. Version 2.0. New York: McGraw-Hill, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.