MLA

Zuid-Afrikaansche Republiek, Oranje-Vrijstaat, Natal, Enz. [Cartographic Material] / Steendr. Senefelder, Amst. Seyffardt's Boekhandel, 1899. https://collections.library.yale.edu/catalog/15532805.

APA, 6th edition

Zuid-Afrikaansche Republiek, Oranje-Vrijstaat, Natal, Enz. [cartographic material] / Steendr. Senefelder, Amst. (1899). [Maps]. Seyffardt's Boekhandel, https://collections.library.yale.edu/catalog/15532805.