APA aipamena

Gottlieb, S. (1999). Smoking bans do not hurt tourism. BMJ Publishing Group Ltd.

Chicago Style aipamena

Gottlieb, Scott. Smoking Bans Do Not Hurt Tourism. BMJ Publishing Group Ltd, 1999.

MLA aipamena

Gottlieb, Scott. Smoking Bans Do Not Hurt Tourism. BMJ Publishing Group Ltd, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.