Brazil : managing water quality : mainstreaming the environment in the water sector / Sergio Margulis, Gordon Hughes, Martin Gambrill, Luiz Gabriel T. Azevedo. - Washington : World Bank, 2002. - ix, 57 p. ; 28 cm.см.. - (World Bank technical paper ; No. 532). - ISBN 0-8213-5347-0[MFN: 3527]