APA-viite (7. p.)

Ke, B., Petroni, K. R., & Shackelford, D. A. (1999). The impact of state taxes on self-insurance. National Bureau of Economic Research.

Chicago-viite (17. p.)

Ke, Bin, Kathy R. Petroni, ja Douglas A. Shackelford. The Impact of State Taxes on Self-insurance. Cambridge: National Bureau of Economic Research, 1999.

MLA-viite (9. p.)

Ke, Bin, et al. The Impact of State Taxes on Self-insurance. National Bureau of Economic Research, 1999.