Gaya APA
Riordan, R., Indardini, R. (2014).
The Heroes of Olympus 3 : The Mark of Athena = Tanda Athena .
Jakarta:
Mizan Fantasi.
Gaya MLA
Riordan, Rick., Indardini, Reni.
"The Heroes of Olympus 3 : The Mark of Athena = Tanda Athena".
Jakarta:
Mizan Fantasi,
2014.
Text.