Cotton, D., & David Cotton; David Falvey; Simon Kent. (2012). Market leader: Intermediate business english course book. Hà Nội: Văn hóa Thông tin.
استشهاد بنمط شيكاغوCotton, David, و David Cotton; David Falvey; Simon Kent. Market Leader: Intermediate Business English Course Book. Hà Nội: Văn hóa Thông tin, 2012.
MLA استشهادCotton, David, و David Cotton; David Falvey; Simon Kent. Market Leader: Intermediate Business English Course Book. Hà Nội: Văn hóa Thông tin, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.