Roemer, M. I. (1981). Ambulatory health services in America: Past, present, and future. Aspen Systems.
Lua i Stíl Chicago (17ú heag.)Roemer, Milton Irwin. Ambulatory Health Services in America: Past, Present, and Future. Rockville, MD: Aspen Systems, 1981.
Lua MLA (9ú heag.)Roemer, Milton Irwin. Ambulatory Health Services in America: Past, Present, and Future. Aspen Systems, 1981.
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