Farias, M. G. de S., Lima, A. M. M. de . and Silva Junior, J. de A. . (2020) “Management and springs conservation in the Marapanim river basin (PA): Management and springs conservation in the Marapanim river basin (PA)”, REVISTA GEONORTE, 11(37), pp. 78–95. doi: 10.21170/geonorte.2020.V.11.N.37.78.96.