Παραπομπή APA

Cornelsen. (2009). Interactive language course Business English: Negotiations. Tp.HCM: Tổng hợp Tp.Hcm; Công ty TNHH Nhân Trí Việt.

Παραπομπή Chicago Style

Cornelsen. Interactive Language Course Business English: Negotiations. Tp.HCM: Tổng hợp Tp.Hcm; Công ty TNHH Nhân Trí Việt, 2009.

Παραπομπή MLA

Cornelsen. Interactive Language Course Business English: Negotiations. Tp.HCM: Tổng hợp Tp.Hcm; Công ty TNHH Nhân Trí Việt, 2009.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.