Trích dẫn APA

Viney, P., Hardley, B., & Hardley, B. Streamline English: Directions - An intensive English course for upper intermediate students /Peter Viney, Bernard Hardley. Hardley, Bernard .

Trích dẫn kiểu Chicago

Viney, Peter, Bernard Hardley, và Bernard  Hardley. Streamline English: Directions - An Intensive English Course for Upper Intermediate Students /Peter Viney, Bernard Hardley. Hardley, Bernard .

Trích dẫn MLA

Viney, Peter, Bernard Hardley, và Bernard  Hardley. Streamline English: Directions - An Intensive English Course for Upper Intermediate Students /Peter Viney, Bernard Hardley. Hardley, Bernard .

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