Smith P. Sean, <br/><br/>
Project earth science:   astronomy / 
P. Sean, Smith. 
 - National science teachers association:  Virginia,  1996. 
 - 151 p . :  ill. ; 
<br/><br/><label>ISBN: </label>083551087 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth science
<br/><br/><label>LC Class. No.: </label>QB61 .S553 1996