Scott MacGillivray Laurel & Hardy, From the Forties Forward Lanham, New York, Oxford, 1998 |
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John McCabe (text) Al Kilgore (compiled by) Laurel & Hardy New York, 1975 |
Larry Langman & David Ebner Encyclopedia of American Spy Films New York & London, 1990 |
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Jay Robert Nash, Stanley Ralph Ross The Motion Picture Guide, Volume I A-B 1927-1983 Chicago, 1985 |