오십, 중용 이 필요 한 시간
Subtitle: kiulchido ch'iuch'ijido an nŭn insaeng ŭl mannada
By: Sin Chŏng-gŭn chiŭm
Edition: Ch'op'an.
Series: KI sinsŏ -- 8828
Publisher: 21-segi Puksŭ
Published: 2019
Place of publication: Kyŏnggi-do P'aju-si
Language: kor
Number of pages: 282
ISBN-13: 9788950984847
Subjects: History and criticism; Zhong yong
Other titles: Osip, chungyong i p'iryo han sigan