found: Guidelines on subject access to individual works of fiction, drama, etc., 2000(Spy stories. UF Espionage stories, Spy novels. Use for fiction dealing with espionage, secret agents and with secret service agencies)
found: McCormick, D. Who's who in spy fiction, 1977.
found: Smith, M.J. Cloak-and-dagger bibliography : an annotated guide to spy fiction, 1937-1975, 1976.
found: Smith, M.J. Cloak and dagger fiction : an annotated guide to spy thrillers, 1995.
found: Aronoff, M.J. The spy novels of John le Carré, 1998.
