Cita APA (7a ed.)

Pearse,Penny. (2015). Without a trace. Penguin Books.

Cita Chicago Style (17a ed.)

Pearse,Penny. Without a Trace. U.K: Penguin Books, 2015.

Cita MLA (9a ed.)

Pearse,Penny. Without a Trace. Penguin Books, 2015.