Gaya APA

Riordan, R. (2008). THE BATTLE OF THE LABYRINTH : PERCY JACKSON THE OLYMPIANS (Cet. 1/Seri ke 4). Cilandak Barat: Mizan Fantasi.

Gaya MLA

Riordan, Rick. "THE BATTLE OF THE LABYRINTH : PERCY JACKSON THE OLYMPIANS". Cet. 1/Seri ke 4 Cilandak Barat: Mizan Fantasi, 2008. Text.