Shōwa jūgonendo hirenagamaguro gyojō kaihatsu shōrei seiseki.
Contributors: Japan. Nōrinshō. Suisankyoku.
Publisher: Nōrinshō Suisankyoku
Published: 1941
Place of publication: [Tokyo]
Language: jpn
Number of pages: 135
Subjects: Tuna fisheries -- Government policy -- Japan; Bluefin tuna
Other titles: Hirenagamaguro gyojō kaihatsu shōrei seiseki
Notes: Cover title.

Issued as confidential document.