Trinidad and Tobago telephone directory. 

 - Port-of-Spain  Trinidad and Tobago Consolidated Telephones Ltd. 
<br/><br/> 1952, 1956, 1960, 1962, 1963, 1966, 1969, 1974 1977, 1978, 1981, 1987 
<br/><br/><label>Dewey Class. No.: </label>T767