Safian, S. C. (2009). The complete procedure coding book. McGraw Hill Higher Education.
Lua i Stíl Chicago (17ú heag.)Safian, Shelley C. The Complete Procedure Coding Book. Boston: McGraw Hill Higher Education, 2009.
Lua MLA (9ú heag.)Safian, Shelley C. The Complete Procedure Coding Book. McGraw Hill Higher Education, 2009.
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