2024-03-28T18:09:21Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/108212019-04-25T01:14:52Zhdl_2115_10552hdl_2115_8340hdl_2115_138雑報open access611北海道大学農学部農業経済学教室1963-11jpnotherNAhttp://hdl.handle.net/2115/108210385-5961AN0020151X北海道大学農経論叢The Nokei Ronso : The Review of Agricultural Economics, Hokkaido University20247247https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/10821/1/20_p247-247.pdfapplication/pdf62.95 KB1963-11