APA (7th ed.) Citation

World Congress of Psychiatry (6o. otros & Petersen, R. C. (1978). The International challenge of drug abuse. Department of Health, Education, and Welfare.

Chicago Style (17th ed.) Citation

World Congress of Psychiatry (6o. otros and Robert C. Petersen. The International Challenge of Drug Abuse. Rockville: Department of Health, Education, and Welfare, 1978.

MLA (9th ed.) Citation

World Congress of Psychiatry (6o. otros and Robert C. Petersen. The International Challenge of Drug Abuse. Department of Health, Education, and Welfare, 1978.