Investigating the earth
Houghton Mifflin, 1967
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Konferensi tingkat tinggi bumi : Rio De janeiro, 3-14 Juni 1992 / Deppen RI
Departemen Penerangan RI, 1992
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Brown, Bruce
The Miracle Planet/ Bruce Brown and Lane Morgan
Merehurst , 1990
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Dalrymple, G. Brent
The age of the earth
Stanford Univ.Press, 2001
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Brown, G.C.
The Inaccessible earth
Allen & Unwin, 1981
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