APA aipamena

 Goeldner, C. R. (2012).  Tourism: Principles, practices, philosophies.  Wiley.

Chicago Style aipamena

 Goeldner, Charles R.  Tourism: Principles, Practices, Philosophies.  Wiley, 2012.

MLA aipamena

 Goeldner, Charles R.  Tourism: Principles, Practices, Philosophies.  Wiley, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.