Analysis of information sources in references of the Wikipedia article "Reasons for concern" in English language version.
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: CS1 maint: postscript (link) IPCC (2001). Watson, R.T.; et al. (eds.). Climate Change 2001: Synthesis Report. A Contribution of Working Groups I, II, and III to the Third Assessment Report of the Integovernmental Panel on Climate Change. Print version: Cambridge University Press, Cambridge, UK, and New York, N.Y., US. Online version: GRID-Arendal. Retrieved 2011-05-04.{{cite book}}
: CS1 maint: postscript (link) IPCC (2001). Watson, R.T.; et al. (eds.). Climate Change 2001: Synthesis Report. A Contribution of Working Groups I, II, and III to the Third Assessment Report of the Integovernmental Panel on Climate Change. Print version: Cambridge University Press, Cambridge, UK, and New York, N.Y., US. Online version: GRID-Arendal. Retrieved 2011-05-04.{{cite book}}
: CS1 maint: postscript (link) IPCC (2007). Core Writing Team; et al. (eds.). Climate Change 2007: Synthesis Report. A Contribution of Working Groups I, II, and III to the Fourth Assessment Report of the Integovernmental Panel on Climate Change. Geneva, Switzerland: IPCC. Retrieved 2011-05-04.{{cite book}}
: CS1 maint: postscript (link) IPCC (2001). Watson, R.T.; et al. (eds.). Climate Change 2001: Synthesis Report. A Contribution of Working Groups I, II, and III to the Third Assessment Report of the Integovernmental Panel on Climate Change. Print version: Cambridge University Press, Cambridge, UK, and New York, N.Y., US. Online version: GRID-Arendal. Retrieved 2011-05-04.