Dunbar, C. O. Historical geology.3rd ed (Ed. 3.).
Citación estilo ChicagoDunbar, Carl O. Historical Geology.3rd Ed. Ed. 3.
Cita MLADunbar, Carl O. Historical Geology.3rd Ed. Ed. 3.
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Dunbar, C. O. Historical geology.3rd ed (Ed. 3.).
Citación estilo ChicagoDunbar, Carl O. Historical Geology.3rd Ed. Ed. 3.
Cita MLADunbar, Carl O. Historical Geology.3rd Ed. Ed. 3.