National Laboratory of Civil Engineering -Lisbon, PT

London, G.B.Internatio & Lisbon, P.T.National L., 1987. International conference on waste stabilization ponds, Lisbon, Portugal, 1987 : preprints, Lisboa, Portugal: National Laboratory of Civil Engineering. Available at: https://es.ircwash.org/sites/default/files/72-IAWPR87-7449.pdf.