- Author: Joanna Martine Woolfolk
- Language: English
- Year: 2011
- Author: Joanna Martine Woolfolk
- Language: English
- Year: 2011
- Author: Joanna Martine Woolfolk
- Language: English
- Year: 2011
- Author: Morry Sofer
- Language: English
- Year: 2011
- Author: Johnny D. Boggs
- Language: English
- Year: 2002
- Author: Michael Freeman
- Language: English
- Year: 2000
- Author: George H. Foster, Peter C. Weiglin
- Language: English
- Year: 2006
- Author: Ph. D. Darnall
- Language: English
- Year: 2008
- Author: Bill Bradfield, Clare Bradfield
- Language: English
- Year: 1998
- Author: Lynn Lott, Riki Intner
- Language: English
- Year: 2005