South Africa [cartographic material].
MLA
Walker, Geo. H., and Co. South Africa [Cartographic Material]. The Company, 0AD. https://collections.library.yale.edu/catalog/15532803.
APA, 6th edition
Walker, G. H., & C. (0 C.E.). South Africa [cartographic material]. [Maps]. The Company, https://collections.library.yale.edu/catalog/15532803.