Mark Fleming«Churchill: Polar Bear Capital of the World».Hyperion Press,1988,p.78[Consulta: 9 gener 2017].«At least ships are in safe hands once they arrive at the Port of Churchill. The George Kidd and the larger H. M. Wilson are the 2 tugboats that assist the oceangoing vessels in docking.»Arxivat 2013-08-18 a Wayback Machine.«Còpia arxivada». Arxivat de l'original el 2013-08-18.[Consulta: 10 novembre 2017].
Mark Fleming«Churchill: Polar Bear Capital of the World».Hyperion Press,1988,p.78[Consulta: 9 gener 2017].«At least ships are in safe hands once they arrive at the Port of Churchill. The George Kidd and the larger H. M. Wilson are the 2 tugboats that assist the oceangoing vessels in docking.»Arxivat 2013-08-18 a Wayback Machine.«Còpia arxivada». Arxivat de l'original el 2013-08-18.[Consulta: 10 novembre 2017].