Παραπομπή σε μορφή APA (7η εκδ.)

Ludlum, R. (2003). The Altman code: A covert one novel : Serie created by Robert Ludlum, written by Gayle Lynds. St. Martin`s Griffin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ludlum, Robert. The Altman Code: A Covert One Novel : Serie Created by Robert Ludlum, Written by Gayle Lynds. St. Martin`s Griffin, 2003.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ludlum, Robert. The Altman Code: A Covert One Novel : Serie Created by Robert Ludlum, Written by Gayle Lynds. St. Martin`s Griffin, 2003.