Kraus, David H  <br/><br/>
National Science Information Systems:  A guide to science information systems in Bulgaria, Czechoslovakia, Hungary, Poland, Romania and Yugoslavia 

 - U.S.A:  Massachusetts Institute Technology Press,  1972 
 - xvi, 325p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scientific development
<br/><br/><label>Subjects--Index Terms: </label>Technical information Federal 
<br/><br/><label>Universal Decimal Class. No.: </label>D 002.6(4-18)  / L2