Gaya APA

CHACO,. (). SKY . : Gramedia Pustaka Utama.

Gaya Chicago

CHACO,. SKY. : Gramedia Pustaka Utama, . Text.

Gaya MLA

CHACO,. SKY. : Gramedia Pustaka Utama, . Text.

Gaya Turabian

CHACO,. SKY. : Gramedia Pustaka Utama, . Print.