Cita APA

(2004). The world listens when Bill Gates speaks =: Bill Gates speaks đã nói. Tp. Hồ Chí Minh: Trẻ.

Chicago Style Citation

The World Listens When Bill Gates Speaks =: Bill Gates Speaks đã Nói. Tp. Hồ Chí Minh: Trẻ, 2004.

Cita MLA

The World Listens When Bill Gates Speaks =: Bill Gates Speaks đã Nói. Tp. Hồ Chí Minh: Trẻ, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.