Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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