
- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2013

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2013

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2013

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2011

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2011

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2010

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2011

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2011

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2011

- Author: Sam Ruby Dave Thomas David Heinemeier Hansson
- Language: English
- Year: 2011