Bhalla, A. S. (1979). Towards global action for appropriate technology. Pergamon Press.
Chicago-čujuhus (17. p.)Bhalla, A. S. Towards Global Action for Appropriate Technology. Oxford New York: Pergamon Press, 1979.
MLA-čujuhus (9. p.)Bhalla, A. S. Towards Global Action for Appropriate Technology. Pergamon Press, 1979.
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