Lynds, G., & Ludlum, R. (2003). Robert Ludlum's The Altman code. St. Martin's Press, Orion Books.

Lynds, Gayle, and Robert Ludlum. Robert Ludlum's The Altman Code. New York : London: St. Martin's Press, Orion Books, 2003.

Lynds, Gayle, and Robert Ludlum. Robert Ludlum's The Altman Code. St. Martin's Press, Orion Books, 2003.