Cavalcanti, K.G. da S., da Silva, D.F., Lima, N.S., Mendonça, R. de C., Nunes Neto, W.R. and Chagas Silva, M.R. 2020. Quantitative vulnerability assessment of Corda river water basin: impacts of seasonality on water quality in the State of Maranhao. Ciência e Natura. 42, (May 2020), e2. DOI:https://doi.org/10.5902/2179460X39745.