found: Its Catalogue, autumn 2003:t.p. (Colin Bull's Polar Books; Colin Bull, Polar Books, P.O. Box 4675, Rolling Bay, WA 98061, USA) p.1 (I [Colin Bull] have generated another catalogue containing many items from my own collection)
found: Library Thing website, viewed 26 Nov. 2015(Colin Bull Polar Books; 12818 Sunrise Dr NE, Bainbridge Island, WA 98110, United States; catalogues issued several times per year of titles dealing with the planet's Arctic and Antarctic regions)
found: Arctic, vol. 63, no. 4, Dec. 2010:p.483 (Colin Bruce Bradley Bull; geophysicist-glaciologist and meteorologist; in 1986 he moved to Bainbridge Island near Seattle; he maintained a large polar library)