Unesco <br/><br/>
World guide to technical information and documentation services  : guide mondial des centres de documentation et d, information techniques 

 - Paris:  Unesco,  1969. 
 - 287p. 
<br/><br/> PB 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Documentation-Directories
<br/><br/><label>Dewey Class. No.: </label>029  / UNW