Isselbacher, K. J. (1980). Principles of internal medicine: Harrison's (9 ed.). McGraw - Hill.
Lua i Stíl Chicago (17ú heag.)Isselbacher, Kurt J. Principles of Internal Medicine: Harrison's. 9 ed. Estados Unidos: McGraw - Hill, 1980.
Lua MLA (9ú heag.)Isselbacher, Kurt J. Principles of Internal Medicine: Harrison's. 9 ed. McGraw - Hill, 1980.
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