MLA

Wandang sŏ Kakpon. [s.n.,], 0AD. https://collections.library.yale.edu/catalog/10256721.

APA, 6th edition

Wandang sŏ kakpon. (0 C.E.). [Calligraphy (AAT), engravings (AAT)]. [s.n.,]. https://collections.library.yale.edu/catalog/10256721.