著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Nichols, Harvey and National Science Foundation (U.S.)","Palynological and paleoclimatic study of the late Quaternary displacements of the boreal forest-tundra ecotone in Keewatin and Mackenzie, N.W.T., Canada : final report to the National Science Foundation",,"Institute of Arctic and Alpine Research, University of Colorado",1975,Occasional paper,,,,https://cir.nii.ac.jp/crid/1130282271795768192