- Author: Gary C Howard, William E Brown, Manfred Auer
- Language: English
- Year: 2014
- Author: Gary C. Howard William E. Brown Manfred Auer
- Language: English
- Year: 2014
- Author: Gary C. Howard William E. Brown
- Language: English
- Year: 2001
- Author: Gary C. Howard William E. Brown
- Language: English
- Year: 2001