- Author: H. Wayne Sampson John L. Montgomery Gary L. Henryson
- Language: English
- Year: 1991
- Author: D. Gentry Steele Claud A. Bramblett
- Language: English
- Year: 2003
- Author: John W. Storey
- Language: English
- Year: 1986
- Author: Craig Edward Clifford
- Language: English
- Year: 1985
- Author: Norman Cigar
- Language: English
- Year: 1995