宋淵改良指定試驗成績
Subtitle: s̄od̄okobȳo b̄ojo ni kansuru shiken : Sh̄owa 24-nendo
Publisher: Sanshikyoku
Published: 1949
Place of publication: Tokyo?
Language: jpn
Number of pages: 27
Subjects: Mulberry; Diseases and pests
Other titles: S̄oen kairȳo shitei shiken seiseki
Notes: Cover title.