Geological time.

Overview
Works: 26 works in 8 publications in 8 languages
Titles
How do we know the age of the earth / by: (Language materials, printed)
A concise geologic time scale 2016 by: (Electronic resources)
A Geologic time scale 1989 / by: (Language materials, printed)
A geologic time scale 2004 / by: (Language materials, printed)
Earth cycles : = a historical perspective / by: (Language materials, printed)
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