Cita APA

Rothman, D. H. (2002). Atmospheric carbon dioxide levels for the last 500 million years. The National Academy of Sciences.

Citación estilo Chicago

Rothman, Daniel H. Atmospheric Carbon Dioxide Levels for the Last 500 Million Years. The National Academy of Sciences, 2002.

Cita MLA

Rothman, Daniel H. Atmospheric Carbon Dioxide Levels for the Last 500 Million Years. The National Academy of Sciences, 2002.