Cooper J D <br/><br/>
Trip through time 

 - Ed 2nd 
 - Columbus  Merrill Publishing Company         1990 
 - xiii,544p.  cm. 
<br/><br/><label>Standard No.: </label>47496 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Stratigraphy<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H5, N0