An Encyclopaedia of World History

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An Encyclopaedia of World History

By William L. Langer
Houghton, 1940
1,201 pp. $5.50
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This up-to-date version of Ploetz's "Epitome," a classic work of reference, represents a vast improvement over previous editions. Fifteen other scholars assisted the general editor, all but two of them connected with Harvard University.