Editorial - sustainable rural sanitation and new investments, APRISABAC : conclusions of a rural water and sanitation experience (1993-2000); by Raul Reyes V., CER-AGUA. SER, Asociacion de servicios educativos...
Editorial - sanitation sector developments. The new sanitation law : towards efficiency, sustainability, equity and financial viability of services; by Lucia Ruiz (PRES). First Saturday in October : inter-american...