New knowledge library :  universal reference encyclopedia. 

 - London :  Bay Books,  c 1981. 
 - Vols. :  ill. ;  29 cm. 
<br/><br/>V. 31 - tol-uni ; 
<br/><br/>314  314 
<br/><br/><label>ISBN: </label>85835 487 X (v-31) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.<br/>Reference encyclopedia.
<br/><br/><label>Dewey Class. No.: </label>030 / N42