Dietrich, George  <br/><br/>
Crystal Programming:  A project-based introduction to building efficient, safe, and readable web and CLI applications 

 - 1st Edi. 
 - Birmingham:  Packt Publishing,  2022 
 - 356p 
<br/><br/><label>ISBN: </label>978-1801818674 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science 
<br/><br/><label>Dewey Class. No.: </label>005.1  / DIE-C