PAWEŁCZAK, M. Statistical data on international trade in British consular reports from the Sultanate of Zanzibar in the nineteenth century. Roczniki Dziejów Społecznych i Gospodarczych, [S. l.], v. 81, p. 187–223, 2020. DOI: 10.12775/RDSG.2020.07. Disponível em: https://apcz.umk.pl/RDSG/article/view/RDSG.2020.07. Acesso em: 28 mar. 2024.