
- Author: Birdlife International
- Language: English
- Year: 2004

- Author: Clement International Corporation
- Language: English
- Year: 1993

- Author: Clement International Corporation
- Language: English
- Year: 1990

- Author: Inc. Sciences International
- Language: English
- Year: 1995

- Author: international energy agency
- Language: English
- Year: 2007

- Author: International Agency for Research on Cancer
- Language: English
- Year: 2007

- Author: International Code Council
- Language: English
- Year: 2006