Scordo, Christopher <br/><br/>
PMP Exam Prep:  questions, answer & explanations / 
Christopher Scordo. 
 - Estados unidos:  SSI Logic,  2016 
<br/><br/><label>ISBN: </label>13:9780982576809 
<br/><br/><label>Dewey Class. No.: </label>658.404  / S423