Tu si ŏnhae.
By: Yu Yun-gyŏm, Cho Wi, ŭi Chʻim  tŭng chʻan.
Contributors: Yu, Yun-gyŏm.
Publisher: Tʻongmunʾgwan
Published: 1959
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: chi
Number of pages: 261
Other titles: Tusi ŏnhae
Notes: In Hanmun (Chinese characters) and Korean.

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