London, J., & Remkiewicz, F. (2009). Froggy's best babysitter. Viking.
Lua i Stíl Chicago (17ú heag.)London, Jonathan, agus Frank Remkiewicz. Froggy's Best Babysitter. New York: Viking, 2009.
Lua MLA (8ú heag.)London, Jonathan, agus Frank Remkiewicz. Froggy's Best Babysitter. Viking, 2009.
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