Beardon, H.

Beardon, H. & Newman, K., 2011. How wide are the ripples? : from local participation to international organisational learning, (Participatory learning and action (PLA) no. 63) London, UK: International Institute for Environment and Development (IIED). Available at: https://es.ircwash.org/sites/default/files/IIED-2011-PLA63.pdf.