APA aipamena

RIORDAN, R. (2009). PERCY JACKSON AND THE BATTLE OF THE LABYRAINTH. PUFFIN.

Chicago Style aipamena

RIORDAN, RICK. PERCY JACKSON AND THE BATTLE OF THE LABYRAINTH. PUFFIN, 2009.

MLA aipamena

RIORDAN, RICK. PERCY JACKSON AND THE BATTLE OF THE LABYRAINTH. PUFFIN, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.