- Author: Christopher Stevens
- Language: English
- Year: 2011
- Author: Drummond David, Blackstone Audio Inc., Buffett Howard G
- Language: English
- Year: 2014
- Author: Drummond David, Blackstone Audio Inc., Buffett Howard G
- Language: English
- Year: 2013
- Author: MacFarlane-Barrow Magnus
- Language: English
- Year: 2015