Gaya APA
Riordan, R. et al
(2019).
The Heroes of Olympus : The Mark of Athena
(
Cet. 1)
.
Jakarta:
Penerbit Noura Books.
Gaya MLA
Riordan, Rick. et al.
"The Heroes of Olympus : The Mark of Athena".
Cet. 1
Jakarta:
Penerbit Noura Books,
2019.
Text.