Ekdale, A. A. <br/><br/>
The ICHNOLOGY : use of trace fossils in sedimentology and stratigraphy 

 - Tulsa  Society of Economic Paleontologists and Mineralogists  1984 
 - 317p.  30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trace fossils
<br/><br/><label>LC Class. No.: </label>GY QE720.5.E51