Citazione APA

Spratt, R. A., & Santat, D. (2012). Nanny Piggins and the wicked plan (1st U.S. ed.). Little, Brown.

Stile di citazione Chicago

Spratt, R. A., e Dan Santat. Nanny Piggins and the Wicked Plan. 1st U.S. ed. New York: Little, Brown, 2012.

Citazione MLA

Spratt, R. A., e Dan Santat. Nanny Piggins and the Wicked Plan. 1st U.S. ed. Little, Brown, 2012.