APA Citation

Hess, D. (2011). Mental gymnastics: Recreational mathematics puzzles. Mineola, New York: Dover Publications, Inc.

Chicago Style Citation

Hess, Dick. Mental Gymnastics: Recreational Mathematics Puzzles. Mineola, New York: Dover Publications, Inc, 2011.

MLA Citation

Hess, Dick. Mental Gymnastics: Recreational Mathematics Puzzles. Mineola, New York: Dover Publications, Inc, 2011.

Warning: These citations may not always be 100% accurate.