Hansen, Morris Howard, 1910-1990 Sample survey methods and theory / Morris H. Hansen, William N. Hurtwitz, William G. Madoww. - New York : J. Wiley, 1953. - 2 v. - Wiley series in probability and mathematical statistics . Encabezamiento--Tema: ESTADISTICA ---METODOS GRAFICOSMuestreo (Estadística)