APA
Apelberg B. J., Hepp L. M., Avila-Tang E., Kim S., Madsen C., Ma J., Samet J. M. & Breysse P. N. (20140812). Racial differences in hair nicotine concentrations among smokers. : Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco.
Chicago
Apelberg Benjamin J, Hepp Lisa M, Avila-Tang Erika, Kim Sungroul, Madsen Camille, Ma Jiemin, Samet Jonathan M and Breysse Patrick N. 20140812. Racial differences in hair nicotine concentrations among smokers. : Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco.
Harvard
Apelberg B. J., Hepp L. M., Avila-Tang E., Kim S., Madsen C., Ma J., Samet J. M. and Breysse P. N. (20140812). Racial differences in hair nicotine concentrations among smokers. : Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco.
MLA
Apelberg Benjamin J, Hepp Lisa M, Avila-Tang Erika, Kim Sungroul, Madsen Camille, Ma Jiemin, Samet Jonathan M and Breysse Patrick N. Racial differences in hair nicotine concentrations among smokers. : Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco. 20140812.