APA (7th ed.) Citation

Kline, S., & Remkiewicz, F. (1997). Horrible Harry in room 2B. Puffin Books.

Chicago Style (17th ed.) Citation

Kline, Suzy, and Frank Remkiewicz. Horrible Harry in Room 2B. New York, N.Y., U.S.A.: Puffin Books, 1997.

MLA (9th ed.) Citation

Kline, Suzy, and Frank Remkiewicz. Horrible Harry in Room 2B. Puffin Books, 1997.