- Author: ALLAN PEASE BARBARA PEASE
- Language: English
- Author: Allan Pease Barbara Pease
- Language: English
- Year: 2001
- Author: Allan Pease Barbara Pease
- Language: Spanish
- Year: 2005
- Author: Allan Pease Barbara Pease
- Language: German
- Year: 2004
- Author: Allan Pease Barbara Pease
- Language: German
- Year: 2003
- Author: Allan Pease Barbara Pease
- Language: English
- Year: 2009
- Author: Allan/Pease Barbara Pease
- Language: English
- Year: 2006