Nihon kaiun seisakuron
By: Tsuruta Tsutomu
Series: Umi no kinenbi kyōsan kenshō ronbunshū -- dai 2-kai, dai 5-satsu
Publisher: Kaiun Kokusaku Kenkyūkai
Published: 1942
Place of publication: Kōbe-shi
Language: jpn
Number of pages: 78
Subjects: Technological innovations; Government policy; Merchant marine; Shipping