Smith, Felisa A., Hammond, John I., Balk, Meghan A., Elliott, Scott M., Lyons, S. Kathleen, Pardi, Melissa I., Tomé, Catalina P., Wagner, Peter J., and Westover, Marie L. Exploring the influence of ancient and historic megaherbivore extirpations on the global methane budget. Proceedings of the National Academy of Sciences 113.4 Web. doi:10.1073/pnas.1502547112.

Smith, Felisa A., Hammond, John I., Balk, Meghan A., Elliott, Scott M., Lyons, S. Kathleen, Pardi, Melissa I., Tomé, Catalina P., Wagner, Peter J., & Westover, Marie L. Exploring the influence of ancient and historic megaherbivore extirpations on the global methane budget. Proceedings of the National Academy of Sciences, 113 (4). https://doi.org/10.1073/pnas.1502547112

Smith, Felisa A., Hammond, John I., Balk, Meghan A., Elliott, Scott M., Lyons, S. Kathleen, Pardi, Melissa I., Tomé, Catalina P., Wagner, Peter J., and Westover, Marie L. "Exploring the influence of ancient and historic megaherbivore extirpations on the global methane budget". Proceedings of the National Academy of Sciences 113 (4). United States: Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1502547112. https://par.nsf.gov/biblio/10013741.

@article{osti_10013741,
place = {United States}, title = {Exploring the influence of ancient and historic megaherbivore extirpations on the global methane budget}, url = {https://par.nsf.gov/biblio/10013741}, DOI = {10.1073/pnas.1502547112}, abstractNote = {Not Available}, journal = {Proceedings of the National Academy of Sciences}, volume = {113}, number = {4}, publisher = {Proceedings of the National Academy of Sciences}, author = {Smith, Felisa A. and Hammond, John I. and Balk, Meghan A. and Elliott, Scott M. and Lyons, S. Kathleen and Pardi, Melissa I. and Tomé, Catalina P. and Wagner, Peter J. and Westover, Marie L.}, }