@misc{oai:nied-repo.bosai.go.jp:00006218,
 author = {清水, 文健 and 井口, 隆 and 大八木, 規夫},
 month = {Nov},
 title = {地すべり地形分布図 第48集「羽幌・留萌」},
 year = {2010}
}