Gaya APA

Stroud, J., Chusfani, P, D. (2014). The bartimaeus trilogy #3: gerbang ptolemy (Cet. 4). Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Stroud, Jonathan., Chusfani, Poppy, Damayanti. "The bartimaeus trilogy #3: gerbang ptolemy". Cet. 4 Jakarta: PT Gramedia Pustaka Utama, 2014. Text.