@book{oai:chikyu.repo.nii.ac.jp:00002354,
 author = {SPRAGUE, David and Sprague, David S},
 month = {},
 note = {application/pdf},
 publisher = {Project 2-2, Research Institute for Humanity and Nature},
 title = {Historical GIS of Yakushima Island and the Extent of Human Subsistence Activities},
 year = {2008},
 yomi = {スプレイグ, デイビッド}
}