Pit
By: Mulli Kyosa Moim yŏkkŭm ; taepʻyo chippʻil Yi Ŭng-sin
Contributors: Mulli Kyosa Moim (Korea)
Series: Saeroun kwahak kyoyuk ŭi kiljabi -- 1; Sagyejŏl kyoyuk sinsŏ -- 4
Publisher: Sagyejŏl
Published: 1989
Place of publication: Sŏul
Language: kor
Number of pages: 332
Subjects: Light; Science; Study and teaching (Secondary)
Notes: Includes bibliographical references (p. [326]-332).