https://opac.haffkineinstitute.org/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3APennsylvania%20Union%20of%20American%20Biological%20Societies&sort_by=relevance&format=rss 4 0 50 ISBN: https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7783 By Graves, A. H..
Pennsylvania Union of American Biological Societies 1952 .
2648-3356

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]]> https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7783 ISBN: https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7782 By Graves, A. H. (Ed.).
Pennsylvania Union of American Biological Societies 1952 .
1278-2646

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]]> https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7782 ISBN: https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7779 By Flynn, John E.(Ed.).
Pennsylvania Union of American Biological Societies 1942 .
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]]> https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7779 ISBN: https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7776 Pennsylvania Union of American Biological Societies 1936 .
v + 996

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]]> https://opac.haffkineinstitute.org/cgi-bin/koha/opac-detail.pl?biblionumber=7776