1. Collected in online quotation list. Copyright: Kevin Harris 1995
2. Technology: The Opiate of the Intellectuals;McDermott;New York Review of Books,1969
3. Technology: The Opiate of the Intellectuals;McDermott;New York Review of Books,1969
4. The Myth of the Machine: The Pentagon of Power;Mumford,1970
5. Mechanization Takes Command;Giedion,1948