Deighton, L. (1988). Spy hook. Hutchinson, Ballantine Books.
Cita Chicago (17th ed.)Deighton, Len. Spy Hook. London : New York: Hutchinson, Ballantine Books, 1988.
Cita MLA (8th ed.)Deighton, Len. Spy Hook. Hutchinson, Ballantine Books, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.