- Author: Bih-er Chou, Cal Clark, Janet Clark
- Language: English
- Year: 2022
- Author: Lois Duke Whitaker, Steven Greene, Susan J. Carroll, Erin Cassese, Cal Clark, Janet M. Clark, M. Margaret Conway, Kathleen A. Dolan, Laurel Elder, Kathleen A. Frankovic
- Language: English
- Year: 2008
- Author: Cal Clark, Janet Clark
- Language: English
- Year: 2011
- Author: Clark Janet
- Language: German
- Year: 2010
- Author: Clark Janet
- Language: German
- Year: 2012
- Author: Clark Janet
- Language: German
- Year: 2014
- Author: Clark Janet
- Language: German
- Year: 2013
- Author: Clark Janet
- Language: German
- Year: 2015
- Author: cbt, Clark Janet
- Language: German
- Year: 2019