Cita APA (7th ed.)
BLECHER, E., & VAN WALBEEK, C. (2009). CIGARETTE AFFORDABILITY TRENDS: AN UPDATE AND SOME METHODOLOGICAL COMMENTS.
Cita Chicago (17th ed.)
BLECHER, E.H, i C.P VAN WALBEEK. CIGARETTE AFFORDABILITY TRENDS: AN UPDATE AND SOME METHODOLOGICAL COMMENTS. 2009.
Cita MLA (9th ed.)
BLECHER, E.H, i C.P VAN WALBEEK. CIGARETTE AFFORDABILITY TRENDS: AN UPDATE AND SOME METHODOLOGICAL COMMENTS. 2009.
Atenció: Aquestes cites poden no estar 100% correctes.