MLA

Imray, James F. (James Frederick), 1829?-1891, James Imray and Son. East India Archipelago, western route to China. Chart no. 6.. BRBL_00023D. 1882. https://collections.library.yale.edu/catalog/12222044.

APA, 6th edition

Imray, James F. (James Frederick), 1829?-1891, & James Imray and Son. (["BRBL_00023D"])(1882)[East India Archipelago, western route to China. Chart no. 6.]. https://collections.library.yale.edu/catalog/12222044.