APA (7. basım) Alıntı

Chaloupka, F. J. (1998). The demand for cocaine and marijuana by youth. National Bureau of Economic Research.

Chicago Style (17. basım) Atıf

Chaloupka, Frank J. The Demand for Cocaine and Marijuana by Youth. Cambride: National Bureau of Economic Research, 1998.

MLA (9th ed.) Atıf

Chaloupka, Frank J. The Demand for Cocaine and Marijuana by Youth. National Bureau of Economic Research, 1998.