Greenberg, W. (1978). Competition in the health care sector: Past, present. U.S. Govt. Printer.
Citace podle Chicago (17th ed.)Greenberg, Warren. Competition in the Health Care Sector: Past, Present. Wash., D.C.: U.S. Govt. Printer, 1978.
Citace podle MLA (8th ed.)Greenberg, Warren. Competition in the Health Care Sector: Past, Present. U.S. Govt. Printer, 1978.
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