The World book encyclopedia. 

 - 1972 ed 
 - Chicago :  Field Enterprises Educational Corp.,  1971. 
 - 26 v. :  ill (some col.). 
<br/><br/>Includes bibliogr. references 
<br/><br/> Vol. 1 (LVIII, 974 p.) ;  Vol. 3 (426 p.) ;  Vol. 5 (322 p.) ;  Vol. 7 (513 p.) ;  Vol. 9 (430 p.) ;  Vol. 10 (416 p.) ;  Vol. 13 (831 p.) ;  Vol. 14 (684 p.) ;  Vol. 15 (814 p.) ;  Vol. 17 (446 p.) ;  Vol. 20 (370 p.) ;  Vol. 21 (510 p.) ;  Vol. 22 (1022 p.) ;  Vol. 23 (564 p.) ;  Vol. 24 (526 p.) ;  Vol. 25 (592 p.) ;  Vol. 26 (540 p.) ; 
<br/><br/> An encyclopedia designed especially to meet the needs of elementary, junior high, and high school students 
<br/><br/><label>ISBN: </label>0716600722 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries<br/>Encyclopedias and dictionaries