Title: Chʻŏngsan Chŏng Ssi chokpo : 4-kwŏn.
Authors: Chŏng, Yŏng-chʻang.
Publisher: Chʻŏngsan Chŏng Ssi Poso,
Year: 1934
Subjects: Chŏng family of Chʻŏngsan.