Yoxall W H <br/><br/>
Dynamic models in earth- sciecne instruction 

 -  1983 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>56014 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H4B.3:(B7:3), M3