https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ALeviatan%2C&sort_by=title_az&format=rss 2 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=11416 By Toffler, Alvin,.
Buenos Aires : Leviatan, 1987 .
252 p.

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=11416 ISBN:9509546399 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=117004 ]]> By Kierkegaard, Soren Aabye,.
Buenos Aires : Leviatán, 2004 .
187 p. 9509546399

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