- Author: Richard York, Brett Clark
- Language: English
- Year: 2010
- Author: Richard York
- Language: Polish
- Year: 2007
- Author: Richard York
- Language: English
- Year: 2015
- Author: Richard York
- Language: English
- Year: 2009
- Author: John Bellamy Foster Brett Clark Richard York
- Language: English
- Year: 2008
- Author: Richard York
- Language: English
- Year: 2015
- Author: Richard York
- Language: English
- Year: 2015
- Author: Richard York
- Language: English
- Year: 2
- Author: Ian Pouncey Richard York
- Language: English
- Year: 2