Cita APA

Riordan, R. (2014). The blood of Olympus. Penguin Group.

Citación estilo Chicago

Riordan, Rick. The Blood of Olympus. UK: Penguin Group, 2014.

Cita MLA

Riordan, Rick. The Blood of Olympus. Penguin Group, 2014.

Warning: These citations may not always be 100% accurate.