APA-viite (7. p.)
ebrary, Inc, & Hawkey, C. J. (2012). Textbook of clinical gastroenterology and hepatology (2nd ed.). Wiley-Blackwell.
Chicago-viite (17. p.)
ebrary, Inc, ja C. J. Hawkey. Textbook of Clinical Gastroenterology and Hepatology. 2nd ed. Chichester [England]: Wiley-Blackwell, 2012.
MLA-viite (9. p.)
ebrary, Inc, ja C. J. Hawkey. Textbook of Clinical Gastroenterology and Hepatology. 2nd ed. Wiley-Blackwell, 2012.
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