British Guiana. Drainage and Irrigation Department Bezüge im Wissensnetz Verfasst (2) DNB-Titeldaten General review of drainage & [and] irrigation in the coastal plain and Report for the years ... on the Drainage and Irrigation Department Report of the Drainage and Irrigation Department for the years Creator (2) DNB-Titeldaten General review of drainage & [and] irrigation in the coastal plain and Report for the years ... on the Drainage and Irrigation Department Report of the Drainage and Irrigation Department for the years Administrative Überordnung der Körperschaft (1) GND-Körperschaften British Guiana. Ministry of Works and Hydraulics