Trinidad and Tobago (Colony). Petroleum Department Bezüge im Wissensnetz Verfasst (2) DNB-Titeldaten Administration report of the Petroleum Department for the year Annual administration report for the year Creator (2) DNB-Titeldaten Administration report of the Petroleum Department for the year Annual administration report for the year Administrative Überordnung der Körperschaft (1) GND-Körperschaften Trinidad and Tobago (Colony)