APA引文

IE Business Cases. Tom as Gamboa en Alimentaria SA (Part A). [s.n.].

芝加哥风格引文

IE Business Cases. Tom as Gamboa En Alimentaria SA (Part A). [S.l.]: [s.n.].

MLA引文

IE Business Cases. Tom as Gamboa En Alimentaria SA (Part A). [s.n.].

警告：这些引文格式不一定是100％准确.