Cotton, D., & David Cotton; David Falvey; Simon Kent. (2013). Market leader: Pre-intermediate : Business English course book. Hà Nội: Thời đại.
استشهاد بنمط شيكاغوCotton, David, و David Cotton; David Falvey; Simon Kent. Market Leader: Pre-intermediate : Business English Course Book. Hà Nội: Thời đại, 2013.
MLA استشهادCotton, David, و David Cotton; David Falvey; Simon Kent. Market Leader: Pre-intermediate : Business English Course Book. Hà Nội: Thời đại, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.