眞珠養殖。加工業
By: [henshū Rōdōshō Shokugyō Anteikyoku]
Series: Shokumu kaisetsu -- dai 89-shū
Publisher: Rōdōshō Shokugyō Anteikyoku
Published: 1950
Place of publication: Tokyo]
Language: jpn
Number of pages: 222
Subjects: Pearl fisheries; Cultured pearls; Vocational qualifications
Other titles: Shinju yōshoku kakōgyō
Notes: Cover title.