Xydes, Georgia Alexander Mackenzie and the explorers of Canada / by Georgia Xydes. - New York : Chelsea House, 1992. - 125 p. : ill., photos., maps - World explorers . This book examines the explorations of Sir Alexander Mackenzie in Canada. ISBN: 0-7910-1314-6 Subjects--Topical Terms: Mackenzie, Alexander, Sir, 1763-1820ExplorersCanada--Exploration