APA (7th ed.) Citation

Delton, J., & Maestro, G. (1974). Two good friends ([1st ed.].). Crown Publishers.

Chicago Style (17th ed.) Citation

Delton, Judy, and Giulio Maestro. Two Good Friends. [1st ed.]. New York: Crown Publishers, 1974.

MLA (9th ed.) Citation

Delton, Judy, and Giulio Maestro. Two Good Friends. [1st ed.]. Crown Publishers, 1974.