239. Garfield, Eugene. "Hearings Before the Subcommittee of the Committee on Government Operations, House of Representatives, Ninety-Third Congress, Second Session”, Federal Information Systems and Plans -- Implications and Issues, Part 3, U.S. Government Printing Office, Washington, D.C.: GPO, p. 883-901, 1974, 1974

239. Garfield, Eugene. "Hearings Before the Subcommittee of the Committee on Government Operations, House of Representatives, Ninety-Third Congress, Second Session”, Federal Information Systems and Plans -- Implications and Issues, Part 3, U.S. Government Printing Office, Washington, D.C.: GPO, p. 883-901, 1974, 1974, Box: 93, Folder: 11. Eugene Garfield Papers, 2009-036. Science History Institute Archives. https://sciencehistory.libraryhost.com/repositories/3/archival_objects/21009 Accessed October 18, 2024.