APA (7th ed.) Citation

Phillips, J. M., & Maestro, G. (1972). Right angles: Paper-folding geometry. Crowell.

Chicago Style (17th ed.) Citation

Phillips, Jo McKeeby, and Giulio Maestro. Right Angles: Paper-folding Geometry. New York: Crowell, 1972.

MLA (9th ed.) Citation

Phillips, Jo McKeeby, and Giulio Maestro. Right Angles: Paper-folding Geometry. Crowell, 1972.