ITU seminar (on) the telephone service (held in) London, September 18 - October 1, 1966: organised by the British Post Office. 

 - London :  British Post-Office (BPO) ,  1966 
 - 2 parts.  ill. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International economics
<br/><br/><label>Dewey Class. No.: </label>384  / BPO