European sources of scientific and technical information 
/ Longman Group, UK 
 - UK:     Longman Group,     1989 
 - viii, 375p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>R 03:5/6 (036)(4)  / M9