Essay offered to Herbert Putnam by his colleague and friends on his thirtieth anniversary as librarian of Congress 5th April, 1929 

 - New Haven  Yale University  1929 
 - x,555p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>U.S. Library of Congress. National Union Catolog
<br/><br/><label>LC Class. No.: </label>Z1009.Z3P9