- Author: Emerson W Pugh, Lyle R Johnson, John H Palmer
- Language: English
- Year: 1991
- Author: Emerson M. Pugh George H. Winslow
- Language: English
- Year: 1966
- Author: Emerson W Pugh, Lyle R Johnson, John H Palmer
- Language: English
- Year: 1991
- Author: Emerson W. Pugh
- Language: English
- Year: 1995
- Author: Emerson W. Pugh
- Language: English
- Year: 1995
- Author: Charles J. Bashe Lyle R. Johnson John H. Palmer Emerson W. Pugh
- Language: English
- Year: 1986