2024-03-28T13:48:56Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/627832017-10-15T15:00:00Zhdl_2115_62782hdl_2115_62781hdl_2115_45742表紙open access611北海道農業経済学会1991-03-27jpnotherNAhttp://hdl.handle.net/2115/627830918-9742AN10401038北海道農業経済研究11https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/62783/1/KJ00009064813.pdfapplication/pdf30.18 KB1991-03-27