220 Okinawan Light Railway and its Contribution to Suger Production
220 沖縄の軽便鉄道と製糖の技術史(機械技術史・工学史(II))

Hiroshi YOGI
2011 The Proceedings of the Tecnology and Society Conference  
doi:10.1299/jsmetsd.2011.39 fatcat:ckjxragdxbg2fike2nbcem5zp4