Cita APA

Barkans, M., & Lawrance, K. (2013). Contraband tobacco on post-secondary campuses in Ontario, Canada: Analysis of discarded cigarette butts. BioMed Central.

Citación estilo Chicago

Barkans, Meagan, and Kelli-an Lawrance. Contraband Tobacco On Post-secondary Campuses in Ontario, Canada: Analysis of Discarded Cigarette Butts. BioMed Central, 2013.

Cita MLA

Barkans, Meagan, and Kelli-an Lawrance. Contraband Tobacco On Post-secondary Campuses in Ontario, Canada: Analysis of Discarded Cigarette Butts. BioMed Central, 2013.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.