Cotton, D. (2012). Market leader: Intermediate business English course book (New edition.). Hà Nội: Văn hóa thông tin.
Trích dẫn kiểu ChicagoCotton, David. Market Leader: Intermediate Business English Course Book. New edition. Hà Nội: Văn hóa thông tin, 2012.
ציטוט MLACotton, David. Market Leader: Intermediate Business English Course Book. New edition. Hà Nội: Văn hóa thông tin, 2012.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.