Li, F. X., Robson, P. J., Ashbury, F. D., Hatcher, J., & Bryant, H. E. (2009). Smoking Frequency, Prevalence and Trends, and Their Socio-demographic Associations in Alberta, Canada. Can J Public Health.
Dyfyniad Arddull ChicagoLi, Feng Xiao, Paula J. Robson, Fredrick D. Ashbury, Juanita Hatcher, and Heather E. Bryant. "Smoking Frequency, Prevalence and Trends, and Their Socio-demographic Associations in Alberta, Canada." Can J Public Health 2009.
Dyfyniad MLALi, Feng Xiao, et al. "Smoking Frequency, Prevalence and Trends, and Their Socio-demographic Associations in Alberta, Canada." Can J Public Health 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.