Poleo, Carlos J. Ruiz. Humanos del siglo 21 / Carlos J. Ruiz Poleo. - Primera edición. - Lima : Saxo, 2018. - 1 online resource EbscoHost ISBN: 8740456811 9788740456813 Subjects--Topical Terms: Civilization, Modern--21st century.Social prediction. Index Terms--Genre/Form: Electronic books. LC Class. No.: CB428 Dewey Class. No.: 909.82