Britannica book of the year 1960 
/ Encyclopdia Britiannica, Ltd 
 - Chicago:   Encyclopdia Britiannica, Ltd,   1960 
 - 586p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference works
<br/><br/><label>Universal Decimal Class. No.: </label>R 30.1   / K0