Annual Clinical Congress Chicago, IL. Colon and rectal surgery: 83rd Annual Clinical Congress, October 12-17, 1997, Chicago, IL. American College of Surgeons.
Παραπομπή σε μορφή Chicago (17η εκδ.)Annual Clinical Congress Chicago, IL. Colon and Rectal Surgery: 83rd Annual Clinical Congress, October 12-17, 1997, Chicago, IL. [χ.τ.]: American College of Surgeons.
Παραπομπή σε μορφή MLA (8th εκδ.)Annual Clinical Congress Chicago, IL. Colon and Rectal Surgery: 83rd Annual Clinical Congress, October 12-17, 1997, Chicago, IL. American College of Surgeons.
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