Scheffels, J., Lund, K. E., & McNeill, A. (2012). Contrasting snus and NRT as methods to quit smoking. an observational study. BioMed Central.
Citação norma ChicagoScheffels, Janne, Karl E. Lund, and Ann McNeill. Contrasting Snus and NRT As Methods to Quit Smoking. an Observational Study. BioMed Central, 2012.
MLA引文Scheffels, Janne, Karl E. Lund, and Ann McNeill. Contrasting Snus and NRT As Methods to Quit Smoking. an Observational Study. BioMed Central, 2012.
警告:這些引文格式不一定是100%准確.