/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Back%2C%20Ernest%20Adna%2C%22&sort_by=relevance&format=rss 2 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=9821 By Back, Ernest Adna,.
Washington, U.S. Govt. Print. Off., 1937 .
4 p. , Contribution from Bureau of Entomology and Plant Quarantine. 24 cm..

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=9821 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=9822 By Back, Ernest Adna,.
Washington, U.S. Govt. Print. Off., 1937 .
8 p. , Contribution from Bureau of Entomology and Plant Quarantine. 23 cm..

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