MLA

Company, George F. Cram. Showing Spanish Possessions in West Indies ; Showing Spanish Possessions in East Indies. Geo. F. Cram, engraver and publisher, 0AD. https://collections.library.yale.edu/catalog/15821887.

APA, 6th edition

Company, G. F. C. (0 C.E.). Showing Spanish possessions in West Indies ; Showing Spanish possessions in East Indies. [Maps]. Geo. F. Cram, engraver and publisher, https://collections.library.yale.edu/catalog/15821887.