This issue was also available in hardcover (Dial 1977 as Ellery Queen’s Faces of Mystery). |
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This issue was also available in hardcover (Dial 1978, London: Gollancz 1980, both as Ellery Queen’s Napoleons of Mystery). |
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This issue was also available in hardcover (Dial 1980 as Ellery Queen’s Windows of Mystery). |
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