Brand, S. (1999). The clock of the long now: Time and responsibility. Weidenfeld & Nicolson.
Cita Chicago Style (17a ed.)Brand, Stewart. The Clock of the Long Now: Time and Responsibility. London: Weidenfeld & Nicolson, 1999.
Cita MLA (9a ed.)Brand, Stewart. The Clock of the Long Now: Time and Responsibility. Weidenfeld & Nicolson, 1999.
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