APA (7th ed.) Citation

Maestro, B., & Maestro, G. (1984). Where is my friend? (1st Crown paperback ed.). Crown Publishers.

Chicago Style (17th ed.) Citation

Maestro, Betsy, and Giulio Maestro. Where Is My Friend? 1st Crown paperback ed. New York: Crown Publishers, 1984.

MLA (9th ed.) Citation

Maestro, Betsy, and Giulio Maestro. Where Is My Friend? 1st Crown paperback ed. Crown Publishers, 1984.