The illustrated science and invention encyclopedia :  how it works. 

 - international ed. 
 - 21 v. :  col. ill. ;  26 cm. 
<br/><br/> Volume I: Abacus, Archaeological techniques. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Encyclopedias.<br/>Technology--Encyclopedias.<br/>Inventions--Encyclopedias.<br/>Encyclopedias and dictionaries.