Jeffcoate, W., & Fletcher, R. F. (1993). Lecture notes on endocrinology (5th ed.). Blackwell Scientific Pub.
Lua i Stíl Chicago (17ú heag.)Jeffcoate, William, agus Ronald F. Fletcher. Lecture Notes on Endocrinology. 5th ed. Oxford Boston: Blackwell Scientific Pub, 1993.
Lua MLA (9ú heag.)Jeffcoate, William, agus Ronald F. Fletcher. Lecture Notes on Endocrinology. 5th ed. Blackwell Scientific Pub, 1993.
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