Dokumentuaren aipamena

APA aipamena

Covey, S. R. (2009). Tư duy tối ưu =: First things first. Thành phố Hồ Chí Minh: Trẻ.

Chicago Style aipamena

Covey, Stephen R. Tư Duy Tối Ưu =: First Things First. Thành phố Hồ Chí Minh: Trẻ, 2009.

MLA aipamena

Covey, Stephen R. Tư Duy Tối Ưu =: First Things First. Thành phố Hồ Chí Minh: Trẻ, 2009.

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