por Gloyna, Earnest F [autor] | Eckenfelder, W. Wesley (William Wesley), 1926- [autor].
por International Conference On Effluent Variability From Wastewater Treatment Processes And Its Control (1974 : New Orleans, Louisiana) | Englande, A. J [editor] | Eckenfelder, W. Wesley (William Wesley), 1926- [editor] | Vanderbilt University, International Association on Water Pollution Research | Tulane University.
por Eckenfelder, W. Wesley (William Wesley), 1926- [autor] | Ortiz, Enrique [autor] | Dos Santos, Leomax [autor].
por Eckenfelder, W. Wesley (William Wesley), 1926- [autor].