Mahr, K. (1975). Checkmate: Universe (American ed.). Ace Books.
Chicago Style (17th ed.) CitationMahr, Kurt. Checkmate: Universe. American ed. New York: Ace Books, 1975.
MLA (8th ed.) CitationMahr, Kurt. Checkmate: Universe. American ed. Ace Books, 1975.
Warning: These citations may not always be 100% accurate.