- Author: Michael Duggan
- Language: English
- Year: 2009
- Author: Michael Duggan
- Language: English
- Year: 2011
- Author: Michael Duggan
- Language: English
- Year: 2010
- Author: Michael Duggan
- Language: English
- Year: 2011
Torque for Teens
pdf
- Author: Michael Duggan
- Language: English
- Year: 2010
- Author: Michael Duggan
- Language: English
- Year: 2008
- Author: Michael Duggan
- Language: English
- Year: 2009