[1]
S. D. Chagas, S. T. Iaria, and J. P. de P. Carvalho, “ Bacteria indicative of fecal pollution in irrigation water on vegetables farms which supply the city of Natal - State of Rio Grande do Norte, Brazil ”, Rev. saúde pública, vol. 15, no. 6, pp. 629–642, Dec. 1981, doi: 10.1590/S0034-89101981000600006.