Παραπομπή σε μορφή APA (7η εκδ.)

Saffer, H., & Dave, D. (2001). Mental illness and the demand for alcohol, cocaine and cigarettes. National Bureau of Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Saffer, Henry, και Dhaval Dave. Mental Illness and the Demand for Alcohol, Cocaine and Cigarettes. Cambridge: National Bureau of Economic Research, 2001.

Παραπομπή σε μορφή MLA (9th εκδ.)

Saffer, Henry, και Dhaval Dave. Mental Illness and the Demand for Alcohol, Cocaine and Cigarettes. National Bureau of Economic Research, 2001.