Cornelsen. (2009). Interactive language course Business English: Negotiations. Tp.HCM: Tổng hợp Tp.Hcm; Công ty TNHH Nhân Trí Việt.
Chicago Style CitationCornelsen. Interactive Language Course Business English: Negotiations. Tp.HCM: Tổng hợp Tp.Hcm; Công ty TNHH Nhân Trí Việt, 2009.
MLA CitationCornelsen. Interactive Language Course Business English: Negotiations. Tp.HCM: Tổng hợp Tp.Hcm; Công ty TNHH Nhân Trí Việt, 2009.
Warning: These citations may not always be 100% accurate.