https://biblioteca.uaysen.cl/cgi-bin/koha/opac-search.pl?q=ccl=%28su%3A%22Wages%20and%20labor%20productivity%22%29%20AND%20%28su%3A%22Colombia.%22%29&format=rss2 4 0 50 ISBN 9789587414011 | 9587414012 https://biblioteca.uaysen.cl/cgi-bin/koha/opac-detail.pl?biblionumber=258811 By González Ariza, Ángel León,. . 1 online resource. 9789587414011 | 9587414012

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