Cita APA (7th ed.)

Buchmueller, T. C., DiNardo, J., & Valletta, R. G. (2001). Union effects on health insurance provision and coverage in the United States. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Buchmueller, Thomas C., John DiNardo, i Robert G. Valletta. Union Effects on Health Insurance Provision and Coverage in the United States. Cambridge: National Bureau of Economic Research, 2001.

Cita MLA (9th ed.)

Buchmueller, Thomas C., et al. Union Effects on Health Insurance Provision and Coverage in the United States. National Bureau of Economic Research, 2001.