新聞通信調査会2009-<Z21-90>
National Diet LibraryOther Libraries in Japan
日本新聞協会 [編]日本新聞協会1947-<Z21-88>
Available onlineNational Diet LibraryOther Libraries in Japan
国鉄労働組合教宣部1972-2016<Z24-235>
National Diet LibraryOther Libraries in Japan
官業労働研究所1952-1999<Z6-108>
Available onlineNational Diet LibraryOther Libraries in Japan