Gardner, E. S. (1972). The case of the spurius spinster (5.). Pocket Books.
Chicago-čujuhus (17. p.)Gardner, Erle Stanley. The Case of the Spurius Spinster. 5. New York, Estados Unidos: Pocket Books, 1972.
MLA-čujuhus (9. p.)Gardner, Erle Stanley. The Case of the Spurius Spinster. 5. Pocket Books, 1972.
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