Summers, G. J. (1972). Test your logic: 50 puzzles in deductive reasoning. Dover Publications.
Chicago Style (17th ed.) CitationSummers, George J. Test Your Logic: 50 Puzzles in Deductive Reasoning. New York: Dover Publications, 1972.
MLA (8th ed.) CitationSummers, George J. Test Your Logic: 50 Puzzles in Deductive Reasoning. Dover Publications, 1972.
Warning: These citations may not always be 100% accurate.