/Editorial/ Miguel Laufer THE PERIODICITY OF PERIODICALS 478  /Articles/ Vincenzo Storaci Koschelow, Rafael Fernández Da Silva and Gunta Smits Briedis WATER QUALITY EVALUATION THROUGH BIOINDICATORS AND HYSICOCHEMICAL PARAMETERS IN RÍO CÚPIRA (LA CUMACA, CARABOBO STATE, VENEZUELA) (in Spanish) 480 Erasto D. Sotelo-Ruiz, María del C. Gutiérrez-Castorena, Gustavo M. Cruz-Bello and Carlos A. Ortiz-Solorio PHYSICAL, CHEMICAL, […]