APA-referens (7:e uppl.)

Berndt, E. R., Busch, S. H., & Frank, R. G. (1998). Price indexes for acute phase treatment of depression. National Bureau of Economic Research.

Chicago-referens (17:e uppl.)

Berndt, Ernst R., Susan H. Busch, och Richard G. Frank. Price Indexes for Acute Phase Treatment of Depression. Cambridge: National Bureau of Economic Research, 1998.

MLA-referens (9:e uppl.)

Berndt, Ernst R., et al. Price Indexes for Acute Phase Treatment of Depression. National Bureau of Economic Research, 1998.