Gaya APA
Bois, W, P, D., Bakdisoemanto, N. (2010).
The Twenty-One Balloons = 21 Balon Udara .
Jakarta:
ELex Media Komputindo.
Gaya MLA
Bois, William, Pene, Du., Bakdisoemanto, Nin.
"The Twenty-One Balloons = 21 Balon Udara".
Jakarta:
ELex Media Komputindo,
2010.
Book.