Yōsan no chūshin mondai
Subtitle: keiei gōrika to shingijutsu
By: Nōgyō Asahi hen ; [kyōchosha Hatamura Matayoshi, Matsumura Kiyoshi, Shioda Tsunezō]
Series: Asahi nōgyō sensho -- 14
Publisher: Asahi Shinbunsha
Published: 1950
Place of publication: Tōkyō
Language: jpn
Number of pages: 101
Subjects: Sericulture