Annual Clinical Congress Atlanta. Gastrointestinal disease: 66th Annual Clinical Congress, October 19-24, 1980, Atlanta. American College of Surgeons.
Παραπομπή σε μορφή Chicago (17η εκδ.)Annual Clinical Congress Atlanta. Gastrointestinal Disease: 66th Annual Clinical Congress, October 19-24, 1980, Atlanta. [χ.τ.]: American College of Surgeons.
Παραπομπή σε μορφή MLA (8th εκδ.)Annual Clinical Congress Atlanta. Gastrointestinal Disease: 66th Annual Clinical Congress, October 19-24, 1980, Atlanta. American College of Surgeons.
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