Cite

[Zhongguo gu hang hai tu]. and [中國古航海圖].

MLA

[Zhongguo Gu Hang Hai Tu]., [中國古航海圖]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/16563284.

APA, 6th edition

[Zhongguo gu hang hai tu]., [中國古航海圖]. (0 C.E.). [Atlases, Nautical charts, Manuscript maps, Pictorial maps, Chinese rare maps]. publisher not identified. https://collections.library.yale.edu/catalog/16563284.