Berenstain, S., Berenstain, J., & Berenstain, M. (2007). The Berenstain bears and the big spelling bee. HarperFestival.
Lua i Stíl Chicago (17ú heag.)Berenstain, Stan, Jan Berenstain, agus Mike Berenstain. The Berenstain Bears and the Big Spelling Bee. New York: HarperFestival, 2007.
Lua MLA (8ú heag.)Berenstain, Stan, et al. The Berenstain Bears and the Big Spelling Bee. HarperFestival, 2007.
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