Proterozoikum: Forskelle mellem versioner
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→Snowball Earth: Beviser. |
m →Litteratur: indhold. |
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Linje 75:
*Prothero, D.R.: ''Interpreting the Stratigraphic Record'', 1990, Freeman, ISBN 0-7167-1854-5
*Brian J. Skinner & Stephen C. Porter, ''Physical Geology'', 1987, John Wiley & Sons, ISBN 0-471-05668-5
*Jørn Madsen: "''Livets Udvikling - 4 milliarder års evolutionshistorie A-Å''", 2006, Gyldendals Forlag, ISBN 87-02-03562-6
*http://www.snowballearth.org
{{Commonscat|Proterozoic}}
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