An encyclopedia of world history :  Ancient, medieval, and modern, chronologically arranged / 
Edited by William L. Langer. 
 - ed. 
 - Boston :  Houghton Mifflin co.,  1948. 
 - xlvi, 1270 p. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History.<br/>World history.
<br/><br/><label>LC Class. No.: </label>D20  / .L3