Allison, Mark. <br/><br/>
Star clusters and how to observe them / 
Mark Allison. 
 - London :  Springer,  2006. 
 - xii, 212 p. :  ill. ;  24 cm. 
 - Astronomers' observing guides. .
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>1846281903 (acid-free paper)  RM136.57 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stars--Clusters.<br/>Stars--Clusters--Observations.