Statistics on science & technology  extracts from UNESCO Statistical Yearbook 1992 

 - Unesco  Paris  1992 
 - 120p. 
 - Statistics 
<br/><br/><label>Nat. Bib. No.: </label>P 919 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>001:31 UNE 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Universal Decimal Class. No.: </label>001:31