Kkŭt naeji mothan majimak suŏp
Subtitle: kyodoso tamjang nŏmŏ ogo kan kusok, haejin kyosa, kajok ŭi p'yŏnji
By: Yu Sang-dŏk oe
Edition: Ch'op'an
Series: Mirae munye -- 1
Publisher: Miraesa
Published: 1988
Place of publication: Sŏul
Language: kor
Number of pages: 260
Subjects: Correspondence; Prisoners; Teachers