/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22DE%20SITTER%20L.U.%22&sort_by=relevance&format=rss 4 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=19860 By DE SITTER L.U..
BARCELONA-ESPAÐA OMEGA, S.A. 1970 .
521 pag. 21 cm.

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=19860 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=16180 By DE SITTER, L. U..
NEW YORK-U.S.A. MCGRAW-HILL BOOK COMPANY 1964 .
551 pag 23 cm.

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=16180 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=16175 By DE SITTER, L. U..
BARCELONA-ESPAÑA OMEGA 1962 .
521 pag 22 cm.

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=16175 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=23945 By DE SITTER, L. U..
BARCELONA-ESPAÑA OMEGA 1976 .
521 pag 23 cm.

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