Cita APA

Stevens, M. B., González Rouco, J. F., & Beltrami, H. (2008). North American climate of the last millennium: Underground temperatures and model comparison.

Citación estilo Chicago

Stevens, M. Bruce, Jesús Fidel González Rouco, y Hugo Beltrami. North American Climate of the Last Millennium: Underground Temperatures and Model Comparison. 2008.

Cita MLA

Stevens, M. Bruce, Jesús Fidel González Rouco, y Hugo Beltrami. North American Climate of the Last Millennium: Underground Temperatures and Model Comparison. 2008.