Balmain, David. <br/><br/>
Ferret / 
At head of cover title:  Indexed searching for Ruby aplications. 
David Balmain. 
 - Sebastopol, CA :  O'Reilly Media,  2008. 
 - vii, 100 p. :  ill. ;  23 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0596519400 9780596519407 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Database management.<br/>Ruby (Computer program language).<br/>Relational databases.<br/>Query languages (Computer science).