Russel, K., & Carter, P. (1999). Classic Conundrums: Fiendish puzzles from the 19th Century. Barners & Noble Inc.
Chicago Style (17. basım) AtıfRussel, Kenneth, ve Philip Carter. Classic Conundrums: Fiendish Puzzles from the 19th Century. New York: Barners & Noble Inc, 1999.
MLA (9th ed.) AtıfRussel, Kenneth, ve Philip Carter. Classic Conundrums: Fiendish Puzzles from the 19th Century. Barners & Noble Inc, 1999.
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