Encuesta Nacional de Fecundidad, 1979-80 Conditions of Release Data may be used for academic research, provided that credit is given in any publication resulting from the research to the institute that conducted the survey and that two copies of any publication are sent to the institute: Mr. Gaudencio Zurita Herrera Director General Instituto Nacional de Estad¡stica y Censos Av. 10 de Agosto 229, 3er Piso Quito Ecuador If you have questions or comments about the data, send e-mail to: wfs@dhsprogram.com