4-wŏl hyŏngmyŏng
Subtitle: Chŏngchʻi haengtʻaehakchŏk yŏnʾgu
By: Yi Hwa-su.
Edition: Chʻopʻan
Publisher: Pʻyŏngmin sŏdang
Published: 1985
Place of publication: Sŏul
Language: kor
Number of pages: 176
Subjects: Korea -- History -- April Revolution, 1960.
Other titles: Sawŏl hyŏngmyŏng.
Notes: Includes bibliographical references (p. 170-176).