Statistiques de la Suisse : bases légales
Estatuto organico de la estadistica nacional : boletin de la Contraloria General de la Republica, Dirección Nacional de Estadística
General notes on statistical organization : organizational problems in the field of vital statistics : International Seminar on Statistical Organization : 13-31 October 1952 : Ottawa, Canada
General notes on statistical organization : special problems of organization and operation, migration statistics : International Seminar on Statistical Organization, 13-31 October 1952, Ottawa, Canada