Não informado. (2009). Records of the Geological Survey of Tanganyika. Government Printer.
Style de citation Chicago (17e éd.)Não informado. Records of the Geological Survey of Tanganyika. Dar es Salaam, Tanzania: Government Printer, 2009.
Style de citation MLA (8e éd.)Não informado. Records of the Geological Survey of Tanganyika. Government Printer, 2009.
Attention : ces citations peuvent ne pas être correctes à 100%.