The Encyclopaedia Britannica  a new survey of universal knowledge  Volume 21 - sordella to textile printing 

 - 14th ed 
 - London:  Encyclopaedia Britannica Company,  1929 
 - xvi, 1006p.:  illus. (part col.), ports., maps (part col.);  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries