Modeling the eutrophication processde E. Joe Middlebrooks, Utah State UniversityMateriasEutrophicationCongresMathematical modelsBiological modelsEcologieCongressesModeles mathematiquesEau douceEdiciones (1)Modeling the eutrophication process. (1973)
UUpgrading wastewater stabilization ponds to meet new discharUpgrading wastewater stabilization ponds to meet new discharge standards
NNational survey of manpower utilization and future needs of National survey of manpower utilization and future needs of firms engaged in the manufacture of water and wastewater equipment and supplies