Kyŏre kwahak ŭi palchachʻwi
Subtitle: yumul ro ponŭn chŏntʻong kwahak kisul
By: Chŏng Tong-chʻan, Yu Chʻang-yŏng, Hong Hyŏn-sŏn
Contributors: Yu, Chʻang-yŏng; Hong, Hyŏn-sŏn
Series: Kungnip Chungang Kwahakkwan haksul chʻongsŏ -- 5
Publisher: Kungnip Chungang Kwahakkwan
Published: 1994
Place of publication: Taejŏn Chikhalsi
Language: kor
Number of pages: 231
Subjects: Science; History; Social life and customs
Notes: "1994."