Yangjam
By: Kim Nak-chŏng chŏ
Series: Chʻoesin nongŏp kangjwa -- 27; Chʻoesin nongŏp kangjwa -- 27.
Publisher: Pumin Munhwasa
Published: 1962
Place of publication: Sŏul
Language: kor
Number of pages: 401
Subjects: Silkworms