/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22EHRICH%2C%20PAUL%20R.%20Y%20OTROS%22&sort_by=relevance&format=rss 3 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=16426 By EHRICH, PAUL R. Y OTROS.
COLOMBIA MCGRAW-HILL 1974 .
503 pag 27 cm.

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=16426 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=16424 By EHRICH, PAUL R. Y OTROS.
COLOMBIA MCGRAW-HILL 1974 .
503 pag 27 cm.

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=16424 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=27027 By EHRICH, PAUL R. Y OTROS.
COLOMBIA MCGRAW-HILL 1974 .
503 pag 27 cm.

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