APA (7th ed.) Citation

Phillips, J. M. (1972). Right angles: Paper-folding geometry. Thomas Y. Crowell.

Chicago Style (17th ed.) Citation

Phillips, Jo Mckeeby. Right Angles: Paper-folding Geometry. New York: Thomas Y. Crowell, 1972.

MLA (9th ed.) Citation

Phillips, Jo Mckeeby. Right Angles: Paper-folding Geometry. Thomas Y. Crowell, 1972.