Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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