자연
By: chiŭni kyŏm p'yŏnaeni Mun'gyobu
Edition: Ch'op'an].
Publisher: Kukchŏng Kyogwasŏ Chusik Hoesa
Published: 1972
Place of publication: Sŏul T'ŭkpyŏlsi
Language: kor
Subjects: Nature; Study and teaching (Primary); Study and teaching (Elementary); Science; Textbooks
Other titles: Chayŏn