Gaya APA
Stround, J., Pandia, D. (2007).
The Bartimaeus Trilogy Buku Ketiga Ptolemy's Gate Gerbang Ptolemy .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Stround, Jonathan., Pandia, Dini.
"The Bartimaeus Trilogy Buku Ketiga Ptolemy's Gate Gerbang Ptolemy".
Jakarta:
Gramedia Pustaka Utama,
2007.
Book.