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- Language: English
- Year: 2017

- Author: Richard D. Patterson, Carl E. Armerding, Eugene H. Merrill
- Language: English
- Year: 2017

- Author: Mr. Carl E. Armerding
- Language: English
- Year: 1983

- Author: Carl E. Armerding Ward Gasque
- Language: English
- Year: 1989