Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.