APA

riordan r., . (2011). the throne of fire. new york: hyperion books.

Chicago

riordan rick, . 2011. the throne of fire. new york: hyperion books.

Harvard

riordan r., . (2011). the throne of fire. new york: hyperion books.

MLA

riordan rick, . the throne of fire. new york: hyperion books. 2011.