http://biblioteca.cunori.edu.gt/cgi-bin/koha/opac-search.pl?q=ccl=copydate%3A%221989%22&sort_by=relevance&format=rss 3 0 50 ISBN:968-10-0116-4 http://biblioteca.cunori.edu.gt/cgi-bin/koha/opac-detail.pl?biblionumber=173 By Charles H. Lehmann.
México Editorial Limusa 1989 .
446p. : 22.5cm..
968-10-0116-4

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]]> http://biblioteca.cunori.edu.gt/cgi-bin/koha/opac-detail.pl?biblionumber=173 ISBN:968-7270-43-8 http://biblioteca.cunori.edu.gt/cgi-bin/koha/opac-detail.pl?biblionumber=933 By Earl W. Swokowski.
México Editorial Iberoamérica 1989 .
1097p. : 24cm..
968-7270-43-8

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]]> http://biblioteca.cunori.edu.gt/cgi-bin/koha/opac-detail.pl?biblionumber=933 ISBN:968-16-3147-1 http://biblioteca.cunori.edu.gt/cgi-bin/koha/opac-detail.pl?biblionumber=1117 By Magdalena Ruis de Riepen.
México La Ciencia desde México 1989 .
99 21.
968-16-3147-1

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