APA (7th ed.) Citation

Cho, Y. (2015). Why? Rock & Mineral. Elex Media Komputindo.

Chicago Style (17th ed.) Citation

Cho, Youngseon. Why? Rock & Mineral. Elex Media Komputindo, 2015.

MLA (8th ed.) Citation

Cho, Youngseon. Why? Rock & Mineral. Elex Media Komputindo, 2015.

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