Lomborg, B. (2013). How much have global problems cost the world?: A scorecard from 1900 to 2050. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLomborg, Bjørn. How Much Have Global Problems Cost the World?: A Scorecard from 1900 to 2050. Cambridge University Press, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLomborg, Bjørn. How Much Have Global Problems Cost the World?: A Scorecard from 1900 to 2050. Cambridge University Press, 2013.
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