Pereira de Andrade, Álvaro, Sotomayor, A. M. and Martins Rodrigues, J. J. (2019) “Estimated unit cost of the slaves in the second half of the 18th century”, De Computis, 16(1), pp. 49–76. doi: 10.26784/issn.1886-1881.v16i1.344.