- Author: Douglas E. Cowan
- Language: English
- Year: 2019
- Author: Douglas E. Cowan
- Language: English
- Year: 2018
- Author: Douglas E. Cowan
- Language: English
- Year: 2022
- Author: Douglas E. Cowan
- Language: English
- Year: 2018
- Author: Douglas E. Cowan
- Language: English
- Year: 2004
- Author: Douglas E. Cowan David G. Bromley
- Language: English
- Year: 2015
- Author: Lorne L. Dawson Douglas E. Cowan
- Language: English
- Year: 2004
- Author: Douglas E. Cowan
- Language: English
- Year: 2003
- Author: Douglas E. Cowan
- Language: English
- Year: 2003