- Author: McTigue William R., Phifer Russell W
- Language: English
- Year: 1988
- Author: Thrasher David
- Language: English
- Year: 1987
- Author: Deutsche Gesellschaft für Technische Zusammenarbeit., Moltmann Johann Felix, Römbke Jörg
- Language: English
- Year: 1996
- Author: Sheftel Victor O
- Language: English
- Year: 2000
- Author: Casson Leonard W., Bess James W
- Language: English
- Year: 2003
- Author: Geller E. Scott
- Language: English
- Year: 2001
- Author: Poston John W., Eichholz Geoffrey G.
- Language: English
- Year: 1985
- Author: Poston John W., Eichholz Geoffrey G
- Language: English
- Year: 1985
- Author: Munshower Frank F
- Language: English
- Year: 1994
- Author: Thomas Elliott Welch
- Language: English
- Year: 1998