APA Style

Riordan, R. et al (2008). Percy Jackson and the Olympians 4: the Battle of the Labyrinth (Pertempuran Labirin) (cetakan 17, Juni 2021). Jakarta: Noura Books.

MLA Style

Riordan, Rick. et al. "Percy Jackson and the Olympians 4: the Battle of the Labyrinth (Pertempuran Labirin)". cetakan 17, Juni 2021 Jakarta: Noura Books, 2008. Text.