Tʻongil chang iron
By: Kim Yong-ju = Unified field theory / Kim Yong Ju
Publisher: s.n.]
Published: 1994
Place of publication: [Kyŏngnam Kosŏng-gun
Language: kor
Number of pages: 21
Subjects: Perpetual motion; Unified field theories
Other titles: Unified field theory
Notes: Korean and English.