/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ASiglo%20XXI%20Editores&sort_by=relevance&format=rss 3 0 50 ISBN:9789682322259 /cgi-bin/koha/opac-detail.pl?biblionumber=23981 By Bunge, Mario.
Siglo XXI Editores 9789682322259

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Siglo XXI Editores 9871220456

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=28785 ISBN:9682301556 /cgi-bin/koha/opac-detail.pl?biblionumber=30411 By Paz, Octavio.
Siglo XXI Editores, S.A. 9682301556

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