Perspectives in western civilization :  Essays from Horizon : In 2 vol. Vol. 1 / 
Ed. by William L. Langer. 
 - New York :  American Heritage Publ. Co., Inc. :  Harper & Row, Publ., Inc. ,  1972. 
 - 287 p. 
<br/><br/><label>ISBN: </label>06043841X  800.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilization-History