summers donald J. <br/><br/>
introductory astronomy  laboratory manual 

 - 4th 
 - new york  the mcgraw-hill companies  1997 
 - iv, 130p, ill.  pbk 
<br/><br/><label>ISBN: </label>0072901888 
<br/><br/><label>LC Class. No.: </label>QB43.2.S8 1997