American Psychological Association <br/><br/>
Publication Manual of the American Psychological association 

 - 7th 
 - wasgington DC  American Psychological Association  2020 
 - 427 
<br/><br/><label>ISBN: </label>978-1-4338-1215-4 
<br/><br/><label>ISSN: </label>978-1-4338-1266-1 
<br/><br/><label>Dewey Class. No.: </label>808.06615.