Sōritsu 30-shūnen Kinen Tokubetsu Kōenkai kōen gaiyō
Subtitle: 1993.6.18, Kokuritsu Kyōiku Kaikan Dai Kaigishitsu
Publisher: Un'yushō Senpaku Gijutsu Kenkyūjo
Published: 1993
Place of publication: Mitaka-shi
Language: jpn
Number of pages: 56
Subjects: Marine engineering; Senpaku Gijutsu Kenkyūjo (Japan); History