Butzengeiger, S. (2005). Voluntery compensation of GHG emissions: Selection criteria and implications for the international climate policy system.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रButzengeiger, Sonja. Voluntery Compensation of GHG Emissions: Selection Criteria and Implications for the International Climate Policy System. Hamburg, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रButzengeiger, Sonja. Voluntery Compensation of GHG Emissions: Selection Criteria and Implications for the International Climate Policy System. 2005.
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