Cita APA

Arny, T. (2004). Explorations: Stars, galaxies, and planets (Updated ed.). Boston: McGraw-Hill.

Chicago Style Citation

Arny, Thomas. Explorations: Stars, Galaxies, and Planets. Updated ed. Boston: McGraw-Hill, 2004.

Cita MLA

Arny, Thomas. Explorations: Stars, Galaxies, and Planets. Updated ed. Boston: McGraw-Hill, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.