MLA

Wyld, James, 1812-1887. Wyld's map shewing the various explorations in Africa / James Wyld.. BRBL_00327. [1875?]. https://collections.library.yale.edu/catalog/15513006.

APA, 6th edition

Wyld, James, 1812-1887. (["BRBL_00327"])([1875?])[Wyld's map shewing the various explorations in Africa / James Wyld.]. https://collections.library.yale.edu/catalog/15513006.