GMAT official guide 2019 :  book + online. 

 - Hoboken, New Jersey :  John Wiley & Sons,  c2018. 
 - v, 888 pages :  illustrations ;  26 cm. 
<br/><br/> The definitive guide from the makers of the GMAT exam. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788126574483 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graduate Management Admission Test.
<br/><br/><label>Dewey Class. No.: </label>650.076 GMA