Cita APA

SWAMY, G. K., REDDICK, K. L. B., BROUWER, R. J. N., POLLAK, K. I., & MYERS, E. R. (2010). Smoking prevalence in early pregnancy: Comparison of self-report and anonymous urine cotinine testing.

Chicago Style Citation

SWAMY, GEETA K., KEISHA L. B. REDDICK, REBECCA J. N. BROUWER, KATHRYN I. POLLAK, i EVAN R. MYERS. Smoking Prevalence in Early Pregnancy: Comparison of Self-report and Anonymous Urine Cotinine Testing. 2010.

Cita MLA

SWAMY, GEETA K., et al. Smoking Prevalence in Early Pregnancy: Comparison of Self-report and Anonymous Urine Cotinine Testing. 2010.