Lynskey, M. T., & Hall, W. (1998). Cohort trends in age of initiation to heroin use.
Cita Chicago Style (17a ed.)Lynskey, Michael T., y Wayne Hall. Cohort Trends in Age of Initiation to Heroin Use. 1998.
Cita MLA (9a ed.)Lynskey, Michael T., y Wayne Hall. Cohort Trends in Age of Initiation to Heroin Use. 1998.
Precaución: Estas citas no son 100% exactas.