Cita APA (7a ed.)

Galaif, E. R., & Newcomb, M. D. (1999). Predictors of polydrug use among four ethnic groups: A 12-year longitudinal study. Addictive behaviors, 24(5), 607-631.

Cita Chicago Style (17a ed.)

Galaif, E. R., y M. D. Newcomb. "Predictors of Polydrug Use Among Four Ethnic Groups: A 12-year Longitudinal Study." Addictive Behaviors 24, no. 5 (1999): 607-631.

Cita MLA (8a ed.)

Galaif, E. R., y M. D. Newcomb. "Predictors of Polydrug Use Among Four Ethnic Groups: A 12-year Longitudinal Study." Addictive Behaviors, vol. 24, no. 5, 1999, pp. 607-631.