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Greenberg, Josh; Graham Knight; Elizabeth Westersund (2011). "Spinning climate change: Corporate and NGO public relations strategies in Canada and the United States". The International Communication Gazette. 73 (1–2): 65–82. doi:10.1177/1748048510386742. S2CID154967576.
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Greenberg, Josh; Graham Knight; Elizabeth Westersund (2011). "Spinning climate change: Corporate and NGO public relations strategies in Canada and the United States". The International Communication Gazette. 73 (1–2): 65–82. doi:10.1177/1748048510386742. S2CID154967576.
"Friends of Science". website Developed and maintained by MichellComputing, Calgary Canada. Archived from the original on 16 October 2002. Retrieved 2011-12-04.