Gaya APA

Heo, Soon-Bong, Choi, Yeol, Park, Jong-kwan. (2010). Why?:environment=lingkungan (2002). Jakarta: PT. Elex Media Komputindo.

Gaya Chicago

Heo, Soon-Bong, Choi, Yeol, Park, Jong-kwan. Why?:environment=lingkungan. 2002 Jakarta: PT. Elex Media Komputindo, 2010. Text.

Gaya MLA

Heo, Soon-Bong, Choi, Yeol, Park, Jong-kwan. Why?:environment=lingkungan. 2002 Jakarta: PT. Elex Media Komputindo, 2010. Text.

Gaya Turabian

Heo, Soon-Bong, Choi, Yeol, Park, Jong-kwan. Why?:environment=lingkungan. 2002 Jakarta: PT. Elex Media Komputindo, 2010. Print.