First Canadian ed., which is based on The twentieth-century world. 4th ed. New York, N.Y., 2001. Contains new material which is integrated with the original text adding a Canadian element where relevant. Offering a fresh perspective on Canada's history in the century and its role in the world.
The twentieth century world : an international history by William R. Keylor. ISBN 9780195416923. Published by Oxford University Press in 2005. Publication and catalogue information, links to buy online and reader comments.