CALLAN, M. F., & YEAGER, D. C. (1991). Containing the health care cost spiral. McGraw-Hill.
Cita Chicago (17th ed.)CALLAN, Mary Frances, i David Clark YEAGER. Containing the Health Care Cost Spiral. New York: McGraw-Hill, 1991.
Cita MLA (9th ed.)CALLAN, Mary Frances, i David Clark YEAGER. Containing the Health Care Cost Spiral. McGraw-Hill, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.