Encuesta Nacional de Fecundidad, 1976 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. Rodolfo Heredia Benitez Director Ejecutivo Corporaci¢n Centro Regional de Poblaci¢n Carrera 6A, No. 76-34 Bogota DE Colombia If you have questions or comments about the data, send e-mail to: wfs@dhsprogram.com