Não informado. (1965). Abdominal surgery. American Society of Abdominal Surgeons.
Chicago-viite (17. p.)Não informado. Abdominal Surgery. Melrose, Mass: American Society of Abdominal Surgeons, 1965.
MLA-viite (8. p.)Não informado. Abdominal Surgery. American Society of Abdominal Surgeons, 1965.
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