APA-viite

Riordan,Rick. (2010). Percy Jackson and the last olympian. Puffin books.

Chicago-tyylinen lähdeviittaus

Riordan,Rick. Percy Jackson and the Last Olympian. London: Puffin books, 2010.

MLA-viite

Riordan,Rick. Percy Jackson and the Last Olympian. Puffin books, 2010.