Παραπομπή σε μορφή APA (7η εκδ.)

Williams, H. A. Marihuana and health a report to the congress from the secretary, department of health, education, and welfare.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Williams, Harrison A. Marihuana and Health a Report to the Congress from the Secretary, Department of Health, Education, and Welfare.

Παραπομπή σε μορφή MLA (8th εκδ.)

Williams, Harrison A. Marihuana and Health a Report to the Congress from the Secretary, Department of Health, Education, and Welfare.