Cita APA (7a ed.)

Riordan,Rick. (2015). Heroes of olympus: The blood of olympus. Puffin Books.

Cita Chicago Style (17a ed.)

Riordan,Rick. Heroes of Olympus: The Blood of Olympus. UK: Puffin Books, 2015.

Cita MLA (9a ed.)

Riordan,Rick. Heroes of Olympus: The Blood of Olympus. Puffin Books, 2015.