APA (7th ed.) Citation

Buffett, W. (2014). Why ? People. PT Elex Media Komputindo.

Chicago Style (17th ed.) Citation

Buffett, Warren. Why ? People. PT Elex Media Komputindo, 2014.

MLA (8th ed.) Citation

Buffett, Warren. Why ? People. PT Elex Media Komputindo, 2014.

Warning: These citations may not always be 100% accurate.