Spencer, R. W. (2010). The bad science and bad policy of Obama's global warming agenda. Encounter Books.
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Chicago-čujuhus (17. p.)
Spencer, Roy W. The Bad Science and Bad Policy of Obama's Global Warming Agenda. New York, NY: Encounter Books, 2010.
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MLA-čujuhus (9. p.)
Spencer, Roy W. The Bad Science and Bad Policy of Obama's Global Warming Agenda. Encounter Books, 2010.
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