London, J., & Remkiewicz, F. (2009). Froggy's best babysitter. Viking.
Dyfyniad Arddull ChicagoLondon, Jonathan, and Frank Remkiewicz. Froggy's Best Babysitter. New York: Viking, 2009.
Dyfyniad MLALondon, Jonathan, and Frank Remkiewicz. Froggy's Best Babysitter. Viking, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.