1. ACCA. 2001. UK Environmental Reporting Awards 2000: Report of the Judges. Certified Accountants Educational Trust (CAET): London.
2. AccountAbility. 1999. AccountAbility 1000 (AA1000) – the Foundation Standard. AccountAbility: London.
3. 1999. Performance Indicators for Sustainable Development. http://www.accaglobal.com/publications/accountingandbusiness/18801?session=fffffffe00000000c28288ca3b77ac9e70e8efea6f478884a2559b847fde3c79 [10 August 2001].
4. Audit Commission. 1997. It's a Small World: Local Government's Role as a Steward of the Environment. Audit Commission: London.
5. Audit Commission. 1999. It's a Small World: a Review of Progress in Environmental Stewardship. Audit Commission: London.