Hubbard, B. (1998). Substantial evidence: A whistleblower's true tale of corruption, death and justice. Far Hills, NJ: New Horizon Press.
Chicago-tyylinen lähdeviittausHubbard, Bill. Substantial Evidence: A Whistleblower's True Tale of Corruption, Death and Justice. Far Hills, NJ: New Horizon Press, 1998.
MLA-viiteHubbard, Bill. Substantial Evidence: A Whistleblower's True Tale of Corruption, Death and Justice. Far Hills, NJ: New Horizon Press, 1998.
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