APA
Clarke B. R., . (2003). Challenging logic puzzles. New York: Sterling Publishing.
Chicago
Clarke Barry R, . 2003. Challenging logic puzzles. New York: Sterling Publishing.
Harvard
Clarke B. R., . (2003). Challenging logic puzzles. New York: Sterling Publishing.
MLA
Clarke Barry R, . Challenging logic puzzles. New York: Sterling Publishing. 2003.