APA aipamena

Riordan, R. (2011). The lost hero. Puffin.

Chicago Style aipamena

Riordan, Rick. The Lost Hero. london: Puffin, 2011.

MLA aipamena

Riordan, Rick. The Lost Hero. Puffin, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.