- Author: John M. Janzen
- Language: English
- Year: 2019
- Author: John M. Janzen, William Arkinstall, Charles Leslie
- Language: English
- Year: 2020
- Author: John M. Janzen, Harold F. Miller, John C. Yoder
- Language: English
- Year: 2021
- Author: John M. Janzen
- Language: English
- Year: 1978
- Author: John M. Janzen
- Language: English
- Year: 2019
- Author: John M Janzen
- Language: English
- Year: 1982