- Author: Scott Stevens
- Language: English
- Year: 2013
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- Language: English
- Year: 2009
- Author: David B. Massey
- Language: English
- Year: 2009
- Author: McOwen Robert C
- Language: English
- Year: 2012
- Author: Robert McOwen
- Language: English
- Year: 2012
- Author: David Massey
- Language: English
- Year: 2012