Παραπομπή APA

Roemer, R. (1993). Legislative action to combact the world tobacco epidemic (Ed.2.).

Παραπομπή Chicago Style

Roemer, Ruth. Legislative Action to Combact the World Tobacco Epidemic. Ed.2. Geneva, WHO, 1993.

Παραπομπή MLA

Roemer, Ruth. Legislative Action to Combact the World Tobacco Epidemic. Ed.2. 1993.