Cita APA

Petersen, R. C. (1980). Marijuana research findings: 1980. Rockville, Maryland: Department of Health and Human Services, Public Helath Service, Alcohol, Drug Abuse, and Mental Health Administration.

Citación estilo Chicago

Petersen, Robert C. Marijuana Research Findings: 1980. Rockville, Maryland: Department of Health and Human Services, Public Helath Service, Alcohol, Drug Abuse, and Mental Health Administration, 1980.

Cita MLA

Petersen, Robert C. Marijuana Research Findings: 1980. Rockville, Maryland: Department of Health and Human Services, Public Helath Service, Alcohol, Drug Abuse, and Mental Health Administration, 1980.