Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TOMITA Yoshiro,Hydrography and Irrigation System in the Yonezawa Basin,Annals of The Tohoku Geographycal Asocciation,03872777,THE TOHOKU GEOGRAPHICAL ASSOCIATION,1956,8,3-4,15-26,https://cir.nii.ac.jp/crid/1390001205148167424,https://doi.org/10.5190/tga1948.8.3-4_15