Sorgenfrei,Theodor(ed.) <br/><br/>
Ordovician and Silurian stratigraphy and correlations 

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 - Copenhagen - DINA  Berlingske Bogtrykkeri  1960 
 -  23cm 
 - Congreso Geologico Internacional,21º.Copenhagen,1960   v.7 .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Estratigrafia--Ordovicico--Silurico--Congresos--Geologia----<br/>Geologia