Ackert, P. (2000). Concepts and comments: A reader for students of English as a second language. Thành phố Hồ Chí Minh: Trẻ.
Chicago-tyylinen lähdeviittausAckert, Patricia. Concepts and Comments: A Reader for Students of English As a Second Language. Thành phố Hồ Chí Minh: Trẻ, 2000.
MLA-viiteAckert, Patricia. Concepts and Comments: A Reader for Students of English As a Second Language. Thành phố Hồ Chí Minh: Trẻ, 2000.
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