APA (7th ed.) Citation

Allegrante John P, Sigfusdottir Inga D, Kristjansson Alfgeir L, & Helgason Asgeir R. (2008). Social correlates of cigarette smoking among Icelandic adolescents: A population-based cross-sectional study. BMC.

Chicago Style (17th ed.) Citation

Allegrante John P, Sigfusdottir Inga D, Kristjansson Alfgeir L, and Helgason Asgeir R. Social Correlates of Cigarette Smoking Among Icelandic Adolescents: A Population-based Cross-sectional Study. BMC, 2008.

MLA (9th ed.) Citation

Allegrante John P, et al. Social Correlates of Cigarette Smoking Among Icelandic Adolescents: A Population-based Cross-sectional Study. BMC, 2008.

Warning: These citations may not always be 100% accurate.