Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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