- Author: Richard D. Booker, Earl Boysen
- Language: English
- Year: 2005
- Author: Harry Kybett, Earl Boysen
- Language: English
- Year: 2008
- Author: Earl Boysen Harry Kybett
- Language: English
- Year: 2012
- Author: Harry Kybett Earl Boysen
- Language: Polish
- Year: 2012
- Author: Earl Boysen, Nancy C. Muir
- Language: English
- Year: 2006
- Author: Earl Boysen Nancy C. Muir
- Language: Polish
- Year: 2015
- Author: Earl Boysen, Nancy C. Muir
- Language: English
- Year: 2006
- Author: Gordon McComb Earl Boysen
- Language: English
- Year: 2005
- Author: Richard D. Booker Earl Boysen
- Language: English
- Year: 2005
- Author: Richard D. Booker Earl Boysen
- Language: English
- Year: 2005