MLA

Nokpong chŭngsŏ, 1819. 1819. https://collections.library.yale.edu/catalog/10190063.

APA, 6th edition

Nokpong chŭngsŏ, 1819. (1819). [Government records, Historiography, manuscripts (AAT)]. https://collections.library.yale.edu/catalog/10190063.