MLA

Great Britain. Hydrographic Dept, J. & C. Walker (Firm). Western part of the Java Sea : from Lucipara I. to Sunda Strait and Batavia, corrected to 1861 / engraved by J. & C. Walker.. [1866?]. https://collections.library.yale.edu/catalog/15237563.

APA, 6th edition

Great Britain. Hydrographic Dept, & J. & C. Walker (Firm). ([1866?])[Western part of the Java Sea : from Lucipara I. to Sunda Strait and Batavia, corrected to 1861 / engraved by J. & C. Walker.]. https://collections.library.yale.edu/catalog/15237563.