http://interiorplains.weebly.com/climate.html -
http://www.britannica.com/EBchecked/topic/91513/Canada/43265/The-interior-plains - L Norman, Nicholson 3-5-2014
http://www.canadiangeographic.ca/atlas/themes.aspx?id=canadianlandforms&sub=canadianlandforms_land_appalachian&lang=En
http://www.mnr.gov.on.ca/en/Business/Forests/2ColumnSubPage/STDPROD_091131
.htmlhttp://hrsbstaff.ednet.ns.ca/phillie/InternationalExchange/Canada/Physical%20Regions/Physical_Regions/greatlakes_stlawrence.htm
http://www.canadainternational.gc.ca/united_kingdom-royaume_uni/bilateral_relations_bilaterales/arctic-arctique.aspx?lang=eng
.htmlhttp://hrsbstaff.ednet.ns.ca/phillie/InternationalExchange/Canada/Physical%20Regions/Physical_Regions/greatlakes_stlawrence.htm
http://www.canadainternational.gc.ca/united_kingdom-royaume_uni/bilateral_relations_bilaterales/arctic-arctique.aspx?lang=eng