Eiryō Boruneo no yushi shigen ni tsuite
Series: Nanpō yushi shigen shiryō -- dai 3-gō
Publisher: Nihon Yuryō Tōsei Kabushiki Kaisha Nanpō Yushi Shigen Chōsashitsu
Published: 1940
Place of publication: [Tokyo]
Language: jpn
Subjects: Copra industry
Notes: Cover title.

Confidential document (stamped).