por Barnes, Harry Elmer, 1889-1968 [autor] | Becker, Howard, 1899-1960 [autor] | Muñoz Molina, Tomás [traductor] | Herrero, Vicente [traductor] | Benoft-Samullyan, Emile [colaborador] | Barnes, Harry Elmer, 1889-1968. Social thought from lore to science.
por Rumney, Judah, 1905- [autor] | Rumney, Judah, 1905-. Herbert Spencer's sociology | Muñoz Molina, Tomás [traductor].
por Becker, Howard, 1899-1960 [autor] | Frohlich, Philip [autor] | Muñoz Molina, Tomás [traductor].