Styl cytowania APA

Scheffels, J., Lund, K. E., & McNeill, A. (2012). Contrasting snus and NRT as methods to quit smoking. an observational study. BioMed Central.

Styl cytowania Chicago

Scheffels, Janne, Karl E. Lund, i Ann McNeill. Contrasting Snus and NRT As Methods to Quit Smoking. an Observational Study. BioMed Central, 2012.

Styl cytowania MLA

Scheffels, Janne, Karl E. Lund, i Ann McNeill. Contrasting Snus and NRT As Methods to Quit Smoking. an Observational Study. BioMed Central, 2012.

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