Gardner, M. (1959). The scientific american book of mathematical puzzles and diversions. Simon and Schuster.
Chicago-viite (17. p.)Gardner, Martin. The Scientific American Book of Mathematical Puzzles and Diversions. New York: Simon and Schuster, 1959.
MLA-viite (9. p.)Gardner, Martin. The Scientific American Book of Mathematical Puzzles and Diversions. Simon and Schuster, 1959.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.