
- Author: Atkinson William Walker
- Language: Portuguese
- Year: 2015

- Author: Atkinson William Walker
- Language: English
- Year: 2004

- Author: Atkinson William Walker
- Language: English
- Year: 2016

- Author: Atkinson William Walker
- Language: English
- Year: 2013

- Author: Atkinson William Walker, Beals Edward E.
- Language: Spanish
- Year: 1982

- Author: Atkinson William Walker
- Language: English
- Year: 2007

- Author: Atkinson William Walker.
- Language: English