URL: tandfonline.com ... http://tandfonline.com/loi/rtpg20
URL: firstsearch.ocl ... http://firstsearch.oclc.org
URL: firstsearch.ocl ... http://firstsearch.oclc.org/journal=0033-0124;screen=info;ECOIP
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/The_Professional_Geographer
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q7758480
URL: tandfonline.com ... http://tandfonline.com/loi/rtpg20
URL: firstsearch.ocl ... http://firstsearch.oclc.org
URL: firstsearch.ocl ... http://firstsearch.oclc.org/journal=0033-0124;screen=info;ECOIP
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/The_Professional_Geographer
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q7758480
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+"0033-0124"
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%220033-0124%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%220033-0124%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+0033-0124
