The 6th edition has been replaced.
The APA Publication Manual, 7th edition was published October 2019.
The American Psychological Association anticipates use of the new guidelines to begin Spring 2020. https://apastyle.apa.org/Blog/transition-seventh-edition
Your APA-style research paper should have the following components.
1. APA-style title page
3. The paper with correct margins, in-text citations, etc.