North, Gerald. <br/><br/>
Mastering astronomy / 
Gerald North. 
 - [London] :  Macmillan Education,  1988. 
 - xviii, 342 p. :  ill. 
<br/><br/><label>ISBN: </label>033345656 (pbk) 
<br/><br/><label>LCCN: </label>91024003     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.