Charles P. Mitchell A Guide to Charlie Chan Films Westport, Connecticut; London, 1999 |
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Gary J. Svehla and Susan Svehla (editors) Boris Karloff Baltimore, 1996 |
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James Robert Parish and Michael R. Pitts The Great Detective Pictures Metuchen, N.J. & London, 1990 |
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Richard Bojarski and Kenneth Beals The Films of Boris Karloff Secaucus, NJ, 1974 |
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David Zinman 50 Classic Motion Pictures, The Stuff That Dreams Are Made Of New York, 1970 |
Larry Langman and Daniel Finn A Guide to American Crime Films of the Thirties Westport, Connecticut - London, 1995 |