APA (7th ed.) Zitazioa
MADDEN, G., & BICKEL, W. (1999). ABSTINENCE AND PRICE EFFECTS ON DEMAND FOR CIGARETTES: A BEHAVIORAL-ECONOMIC ANALYSIS.
Chicago Style (17th ed.) Zitazioa
MADDEN, G.J, eta W.K BICKEL. ABSTINENCE AND PRICE EFFECTS ON DEMAND FOR CIGARETTES: A BEHAVIORAL-ECONOMIC ANALYSIS. 1999.
MLA (9th ed.) Zitazioa
MADDEN, G.J, eta W.K BICKEL. ABSTINENCE AND PRICE EFFECTS ON DEMAND FOR CIGARETTES: A BEHAVIORAL-ECONOMIC ANALYSIS. 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.