(2000). Effect of restrictions on smoking at home, at school, and in public places on teenage smoking: Cross sectional study. BMJ.
Citação norma Chicago"Effect of Restrictions On Smoking At Home, At School, and in Public Places On Teenage Smoking: Cross Sectional Study." BMJ 2000.
Citação norma MLA"Effect of Restrictions On Smoking At Home, At School, and in Public Places On Teenage Smoking: Cross Sectional Study." BMJ 2000.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.