Patricia Ackert. (2000). Concepts and comments: A reader for students of English as a second language. Tp. HCM: Trẻ.
Chicago-tyylinen lähdeviittausPatricia Ackert. Concepts and Comments: A Reader for Students of English As a Second Language. Tp. HCM: Trẻ, 2000.
MLA-viitePatricia Ackert. Concepts and Comments: A Reader for Students of English As a Second Language. Tp. HCM: Trẻ, 2000.
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