APA aipamena

Hirvonen, L. (1984). Smoking cessation by the five-day plan in Finland. University of Oulu : Oulu University Library, [distr.].

Chicago Style aipamena

Hirvonen, Leo. Smoking Cessation by the Five-day Plan in Finland. Oulu: University of Oulu : Oulu University Library, [distr.], 1984.

MLA aipamena

Hirvonen, Leo. Smoking Cessation by the Five-day Plan in Finland. University of Oulu : Oulu University Library, [distr.], 1984.