About HIRANO ISAMU
About MAEJIMA KAZUYOSHI
About KURAZUMI YASUO
About HASHIMOTO KAZUAKI
About FURUYA AKIHIKO
About KAWAMURA MASASHI
About YAMAGATA KOTOHIRO
About KOYAMA GORO
About 東京商船大学研究報告 自然科学
About river transportation
About Navigation and practical business
About 隅田川
About オイルタンカー
About 実態調査