Rothman, D. H. (2002). Atmospheric carbon dioxide levels for the last 500 million years. The National Academy of Sciences.
Chicago Style CitationRothman, Daniel H. Atmospheric Carbon Dioxide Levels for the Last 500 Million Years. The National Academy of Sciences, 2002.
MLA CitationRothman, Daniel H. Atmospheric Carbon Dioxide Levels for the Last 500 Million Years. The National Academy of Sciences, 2002.
Warning: These citations may not always be 100% accurate.