Dyfyniad APA

Aveyard, P., Markham, W., Lancashire, E., Almond, J., Griffiths, R., & Cheng, K. (2005). Is inter-school variation in smoking uptake and cessation due to differences in pupil composition? A cohort study.

Dyfyniad Arddull Chicago

Aveyard, P., W. Markham, E. Lancashire, J. Almond, R. Griffiths, and K. Cheng. Is Inter-school Variation in Smoking Uptake and Cessation Due to Differences in Pupil Composition? A Cohort Study. 2005.

Dyfyniad MLA

Aveyard, P., et al. Is Inter-school Variation in Smoking Uptake and Cessation Due to Differences in Pupil Composition? A Cohort Study. 2005.

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