Guide to European sources of technical information  

 - 3rd ed. 
 - British Isles:  Francis Hodgson (F. H. Books Limited)  1970 
 - 416p. 
<br/><br/><label>ISBN: </label>0852802501 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technical information 
<br/><br/><label>Universal Decimal Class. No.: </label>D 002.6:6(4)(026)   / J7;L0