James Robert Parish and Michael R. Pitts The Great Detective Pictures Metuchen, N.J. & London, 1990 |
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Lawrence J. Quirk The Films of Myrna Loy Secaucus, NJ, 1980 |
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James Robert Parish Hollywood's Great Love Teams New Rochelle, N.Y., 1974 |
Larry Langman & David Ebner Encyclopedia of American Spy Films New York & London, 1990 |