APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.