Gaya APA

Irmawan, C. et al (2012). English Today [Jilid 1]: SMA Grade X [Kur. th. 2006] (Ed. 1. Cet. 3.--). Jakarta: Quadra.

Gaya MLA

Irmawan, Catur. et al. "English Today [Jilid 1]: SMA Grade X [Kur. th. 2006]". Ed. 1. Cet. 3.-- Jakarta: Quadra, 2012. Text.