APA (7th ed.) Citation

Kotchen, M. J., & Mansur, E. T. (2016). Correspondence: Reassessing the contribution of natural gas to US CO2 emission reductions since 2007. Nature Portfolio.

Chicago Style (17th ed.) Citation

Kotchen, Matthew J., and Erin T. Mansur. Correspondence: Reassessing the Contribution of Natural Gas to US CO2 Emission Reductions Since 2007. Nature Portfolio, 2016.

MLA (8th ed.) Citation

Kotchen, Matthew J., and Erin T. Mansur. Correspondence: Reassessing the Contribution of Natural Gas to US CO2 Emission Reductions Since 2007. Nature Portfolio, 2016.

Warning: These citations may not always be 100% accurate.