Birch, Izzy et al Publication year: 2007 Source publication information Journal Title: Participatory learning and action Volume: No. 57 Pages: p 53-55 Publisher IIED, 3 Endsleigh Street, London WC1H 0DD, Tel: +44 (0) 20 7388 2117, fax: +44 (0) 20 7388 2826 http://www.iied.org