APA (7th ed.) Citation

Duffey, B., & Natti, S. (1994). Puppy love. Puffin Books.

Chicago Style (17th ed.) Citation

Duffey, Betsy, and Susanna Natti. Puppy Love. New York, N.Y., U.S.A.: Puffin Books, 1994.

MLA (8th ed.) Citation

Duffey, Betsy, and Susanna Natti. Puppy Love. Puffin Books, 1994.