APA aipamena

Bennett, J. S. (1976). Letter: Smoking restrictions in hospitals.

Chicago Style aipamena

Bennett, J. S. Letter: Smoking Restrictions in Hospitals. 1976.

MLA aipamena

Bennett, J. S. Letter: Smoking Restrictions in Hospitals. 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.