
- Author: Halina Sierocka
- Language: English
- Year: 2014

- Author: Venolia Jan
- Language: English
- Year: 2011

- Author: Stirling Bruce
- Language: English
- Year: 2013

- Author: Barbara Minto
- Language: English
- Year: 2010

- Author: Kevin Wilson, Jennifer Wauson
- Language: English
- Year: 2011

- Author: Janzer Anne H
- Language: English
- Year: 2018

- Author: Europäische Union, Glowik Mario, Smyczek Slawomir
- Language: English
- Year: 2015

- Author: Capras Deborah
- Language: English
- Year: 2014

- Author: Covey Stephen R
- Language: English
- Year: 2012