APA aipamena

 Arny, T. (2008).  Explorations: An introduction to astronomy.  McGraw-Hill.

Chicago Style aipamena

 Arny, Thomas.  Explorations: An Introduction to Astronomy.  McGraw-Hill, 2008.

MLA aipamena

 Arny, Thomas.  Explorations: An Introduction to Astronomy.  McGraw-Hill, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.