Trích dẫn APA

Powell, M. (. t. Presenting in English: How to give successful presentations / Mark Powell. Heinle Cengage Learning.

Trích dẫn kiểu Chicago

Powell, Mark (English teacher). Presenting in English: How to Give Successful Presentations / Mark Powell. Heinle Cengage Learning.

Trích dẫn MLA

Powell, Mark (English teacher). Presenting in English: How to Give Successful Presentations / Mark Powell. Heinle Cengage Learning.

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