72×108 Cover, in Spectra Sustainable?, by John S. Quarterman, for SpectraBusters.org, 0 2013

72x108 Cover, in Spectra Sustainable?, by John S. Quarterman, for SpectraBusters.org, 0  2013

72×108 Cover, in Spectra Sustainable?, by John S. Quarterman, for SpectraBusters.org, 0 2013,
2013 Sustainability Report
http://www.spectraenergy.com/content/documents/Sustainability/2013_Sustainability_Report.pdf
http://spectrabusters.org/blog/2014/07/05/sustainable-spectra-like-healthy-cigarettes/

72×108 Cover, in Spectra Sustainable?, by John S. Quarterman, for SpectraBusters.org, 0 2013,
2013 Sustainability Report
http://www.spectraenergy.com/content/documents/Sustainability/2013_Sustainability_Report.pdf
http://spectrabusters.org/blog/2014/07/05/sustainable-spectra-like-healthy-cigarettes/

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