https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Le%20Bon%2C%20Gustave%2C%22&sort_by=title_az&format=rss 3 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=49371 By Le Bon, Gustave, .
Madrid : Librería Gutenberg de José Ruiz, 1910 .
346 páginas

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Madrid : Morata, 1983 .
151 p. 847112212X

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=49420 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=210293 By Le Bon, Gustave, .
México, D.F. : Nacional, 1970 .
271 páginas

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