Straszewicz, S., & Smólska, J. (1965). Mathematical problems and puzzles from the Polish mathematical olympiads (First English edition.). Pergamon Press.
Chicago Style (17th ed.) CitationStraszewicz, S., and J. Smólska. Mathematical Problems and Puzzles from the Polish Mathematical Olympiads. First English edition. Oxford ; New York: Pergamon Press, 1965.
MLA (9th ed.) CitationStraszewicz, S., and J. Smólska. Mathematical Problems and Puzzles from the Polish Mathematical Olympiads. First English edition. Pergamon Press, 1965.
Warning: These citations may not always be 100% accurate.