Gaya APA

Rollins, J. (2009). The Doomsday Key 2012 (Cet.1). Depok: Imania, Ki Twon House.

Gaya MLA

Rollins, James. "The Doomsday Key 2012". Cet.1 Depok: Imania, Ki Twon House, 2009. Text.