Cita APA (7a ed.)

Riordan Rick. (2012). Serpent's Shadow. Puffin Books.

Cita Chicago Style (17a ed.)

Riordan Rick. Serpent's Shadow. England: Puffin Books, 2012.

Cita MLA (9a ed.)

Riordan Rick. Serpent's Shadow. Puffin Books, 2012.