Ramsey, R. G. (1984). Advanced: Exercises in Diagnostic Radiology. W.B. Saunders Company.
Lua i Stíl Chicago (17ú heag.)Ramsey, Ruth G. Advanced: Exercises in Diagnostic Radiology. Chicago, Ilinois: W.B. Saunders Company, 1984.
Lua MLA (9ú heag.)Ramsey, Ruth G. Advanced: Exercises in Diagnostic Radiology. W.B. Saunders Company, 1984.
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