/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3APlus%20Ultra%20Educational%2C&sort_by=relevance&format=rss 3 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=14395 By Ribes Tovar, Federico..
[New York] : Plus Ultra Educational Publishers, 1973 .
606 p. 18 cm..

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=14395 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=88761 By Moretti, Darcía.
New York : Plus Ultra Educational, 1973 .
219 p. ; 19 cm..

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=88761 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=107631 By Ribes Tovar, Federico..
San Juan, P.R. : Plus Ultra Educational Publishers, 1970 .
3 v. , Parallel text: Spanish/English. 26 cm..

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