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An Assessment of Technology for Local Development. Ota-R ;129. Congress of the United States, Office of Technology Assessment: For sale by the Supt. of Docs., U.S. G.P.O. 1981. p. 31. hdl:2027/uc1.b4261900. OCLC7233599.
Veysey 1978, p. 412. Veysey, Laurence R (1978). The Communal Experience: Anarchist and Mystical Communities in Twentieth-Century America. Chicago: University of Chicago Press. ISBN0226854582. OCLC4653689.
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