Aldo Leopold Archives (WI) http://www.aldoleopold.org/Resources/archives.shtml, http://digicoll.library.wisc.edu/AldoLeopold/Victor E. Shelford Papers, 1896-1965 (University of Wisconsin) http://www.library.illinois.edu/archives/archon/ind…

中島弘二(2000)「十五年戦争期の緑化運動 総動員体制下の自然の表象」『北陸史学』49: 1-22. http://dspace.lib.kanazawa-u.ac.jp/dspace/bitstream/2297/3669/1/LE-PR-NAKAJIMA-K-122.pdf 手束平三郎(1990)「我が国の緑化運動」国土緑化推進機構編『緑化の…