World guide to technical information and documentation services / 
 Guide mondial des centres de documentation et d'information techniques. 

 - [Paris] :  Unesco Press,  1969. 
 - 287 p. ;  21 cm. 
<br/><br/> English or French.  Includes indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Information services --Directories
<br/><br/><label>Dewey Class. No.: </label>607