Citazione APA

London, J., & Remkiewicz, F. (2000). Froggy goes to bed. Viking.

Stile di citazione Chicago

London, Jonathan, e Frank Remkiewicz. Froggy Goes to Bed. New York: Viking, 2000.

Citazione MLA

London, Jonathan, e Frank Remkiewicz. Froggy Goes to Bed. Viking, 2000.