Cita APA (7a ed.)

Person, P. H., Retka, R. L., & Woodward, J. A. (1976). Toward a heroin problem index: An analytical model for drug abuse indicators. DHEW publication / ADM.

Cita Chicago Style (17a ed.)

Person, Philip H., Robert L. Retka, y J. Arthur Woodward. "Toward a Heroin Problem Index: An Analytical Model for Drug Abuse Indicators." DHEW Publication / ADM 1976.

Cita MLA (9a ed.)

Person, Philip H., et al. "Toward a Heroin Problem Index: An Analytical Model for Drug Abuse Indicators." DHEW Publication / ADM, 1976.