produced by the Surveys and Mapping Branch, Department of Energy, Mines and ResourcesSurveys and Mapping Branch, Department of Energy, Mines and Resources[1954]-2000<YG1-C3-5.0>
produced by the Surveys and Mapping Branch, Department of Energy, Mines and Resources.Surveys and Mapping Branch, Department of Energy, Mines and Resources[1960]-1998.<YG1-C3-25.0>
établi par l'Institut géographique national-France, en collaboration avec l'Institut géographique du BurundiInstitut géographique national1981-1983<YG1-B13-5.0a>