Publication manual of the American psychological association :  the official guide to apa style / 

 - 7th ed. 
 - Washington, DC :   American Psychological Association,   2020. 
 - xxii, 427 p. :  ill. ;  24 cm. 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>9781433832154 9781433832161 9781433832178 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences
<br/><br/><label>Dewey Class. No.: </label>808.06615