Ackert, P., & Annel L. Nebel. (2000). Concepts and Comments: A reader for students of English as a second language (Lần thứ 2.). Tp. Hồ Chí Minh: Trẻ.
Chicago-tyylinen lähdeviittausAckert, Patricia, ja Annel L. Nebel. Concepts and Comments: A Reader for Students of English As a Second Language. Lần thứ 2. Tp. Hồ Chí Minh: Trẻ, 2000.
MLA-viiteAckert, Patricia, ja Annel L. Nebel. Concepts and Comments: A Reader for Students of English As a Second Language. Lần thứ 2. Tp. Hồ Chí Minh: Trẻ, 2000.
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