J. Bogardi, Hartvelt, F., Hugo, A., Mwanza, D. D., Jonker, L., van der Beken, A., en Wietsma, E.,
Networking in the water sector : suggestions and examples for best practice : report of the Community of Practice on Networking for W-E-T (Water-Education-Training), vol. no. 63. Paris, France: UNESCO, 2004, p. 63 p. : fig., tab.