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"Encyclopedia of World History by William L. Langer. New York: Harry N. Abrams. 1972. First Edition. Two volumes. 1,300 pages. Hardcover with a dust jacket in slipcase. A lavishly illustrated two-volume encyclopedia set on world history."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.onekingslane.com/p/1735829-encyclopedia-of-world-history-2-vols>