URL: www.jstor.org/j ... http://www.jstor.org/journals/00028444.html
URL: www.bioone.org/ ... http://www.bioone.org/bioone/?request=get-journals=list&issn=0002-8444
URL: firstsearch.ocl ... http://firstsearch.oclc.org
URL: firstsearch.ocl ... http://firstsearch.oclc.org/journal=0002-8444;screen=info;ECOIP
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/American_Fern_Journal
Wikipedia: es.wikipedia.or ... https://es.wikipedia.org/wiki/American_Fern_Journal
Wikipedia: uk.wikipedia.or ... https://uk.wikipedia.org/wiki/American_Fern_Journal
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/038662051
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q5672427
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/jg54w34byzb27cmgvuehex52ve
URL: www.jstor.org/j ... http://www.jstor.org/journals/00028444.html
URL: www.bioone.org/ ... http://www.bioone.org/bioone/?request=get-journals=list&issn=0002-8444
URL: firstsearch.ocl ... http://firstsearch.oclc.org
URL: firstsearch.ocl ... http://firstsearch.oclc.org/journal=0002-8444;screen=info;ECOIP
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/American_Fern_Journal
Wikipedia: es.wikipedia.or ... https://es.wikipedia.org/wiki/American_Fern_Journal
Wikipedia: uk.wikipedia.or ... https://uk.wikipedia.org/wiki/American_Fern_Journal
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/038662051
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q5672427
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/jg54w34byzb27cmgvuehex52ve
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%220002-8444%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%220002-8444%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%220002-8444%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+0002-8444