Crimes,T.P. ed. and J.C. Harper <br/><br/>
Trace fossils. Proceedings of an International Conference held at Liverpool University 

 - 
 - Liverpool - ARGE  Seel House Press  1970 
 - 547p.  25cm 
 - Geological journal issues   v.3 .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Paleontologia--Fosiles--Congresos----<br/>Geologia