APA (7th ed.) Citation

Brekke, K. R., Nuscheler, R., & Straume, O. R. (2005). Gatekeeping in health care. CES.

Chicago Style (17th ed.) Citation

Brekke, Kurt R., Robert Nuscheler, and Odd Rune Straume. Gatekeeping in Health Care. Munich: CES, 2005.

MLA (9th ed.) Citation

Brekke, Kurt R., et al. Gatekeeping in Health Care. CES, 2005.