APA (7. basım) Alıntı

Helms, R. B. (1981). Drugs and health: Economic issues and policy objectives. American Enterprise Institute for Public Policy Research.

Chicago Style (17. basım) Atıf

Helms, Robert B. Drugs and Health: Economic Issues and Policy Objectives. Washington,D. C: American Enterprise Institute for Public Policy Research, 1981.

MLA (9th ed.) Atıf

Helms, Robert B. Drugs and Health: Economic Issues and Policy Objectives. American Enterprise Institute for Public Policy Research, 1981.