Cushman, D. (2004). Mystery at the Club Sandwich. Clarion Books.
Lua i Stíl Chicago (17ú heag.)Cushman, Doug. Mystery at the Club Sandwich. New York: Clarion Books, 2004.
Lua MLA (8ú heag.)Cushman, Doug. Mystery at the Club Sandwich. Clarion Books, 2004.
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