British Columbia - Graves, William (National Geographic Society, 1992)
Muestra a Columbia Británica–Incluye signos convencionales–Inserciones: Isla Vancouver–"Suplement to the National Geographic, April 1992, Page 94A, Vol. 181 No. 4, British Columbia"–En el reverso: The making of Canada British Columbia–Mapas en el reverso– 1 ca 1775 Native life– 2 1774-1845 Exploring the Northwest– 3 1846-1940 Resources, rails, settlement– 4 1941 - present British Columbia today