APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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