The new book of knowledge. Vol.1 

 - Boston   : Houghton Mifflin Company,  1981 
 - xv,1550p.   : ill.   ; 29cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0-7172-0510-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowlodge
<br/><br/><label>LC Class. No.: </label>REF AG5.B64 VOL. I 1981