Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yoshimitsu Hirao,Trading of Lead During the Warring State Period in Japan from the View Point of Lead Isotope Ratios,Abstracts of Annual Meeting of the Geochemical Society of Japan,,GEOCHEMICAL SOCIETY OF JAPAN,2012,59,0,327,https://cir.nii.ac.jp/crid/1390001205731928320,https://doi.org/10.14862/geochemproc.59.0.327.0