Berenstain, S., Berenstain, J., & Berenstain, M. (2008). The Berenstain bears and the bad influence. HarperFestival.
Lua i Stíl Chicago (17ú heag.)Berenstain, Stan, Jan Berenstain, agus Mike Berenstain. The Berenstain Bears and the Bad Influence. New York, NY: HarperFestival, 2008.
Lua MLA (8ú heag.)Berenstain, Stan, et al. The Berenstain Bears and the Bad Influence. HarperFestival, 2008.
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