Cita APA (7a ed.)

Riordan,Rick. (2015). The Serpent's Shadow. Puffin Books.

Cita Chicago Style (17a ed.)

Riordan,Rick. The Serpent's Shadow. UK: Puffin Books, 2015.

Cita MLA (9a ed.)

Riordan,Rick. The Serpent's Shadow. Puffin Books, 2015.