O'Neill, R., & Robert O'Neill; Trầm Thanh Sơn; Trầm Thị Xuân Hương. (1999). Business news: For reading & speaking components in Bec2&Bec3 =. Đồng Nai: Nxb. Đồng Nai.
Style de citation ChicagoO'Neill, Robert, et Robert O'Neill; Trầm Thanh Sơn; Trầm Thị Xuân Hương. Business News: For Reading & Speaking Components in Bec2&Bec3 =. Đồng Nai: Nxb. Đồng Nai, 1999.
Style de citation MLAO'Neill, Robert, et Robert O'Neill; Trầm Thanh Sơn; Trầm Thị Xuân Hương. Business News: For Reading & Speaking Components in Bec2&Bec3 =. Đồng Nai: Nxb. Đồng Nai, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.