Practical guide and verification
Build the reference list from verified source facts
A reference-page formatter can arrange entries, but it cannot determine whether the source really has a personal author, group author, publication date, edition, DOI, or stable URL. Verify those facts on the original source before formatting.
Ordering and consistency
APA reference lists are normally organized by author information rather than by the order sources appear in your paper. Keep author names, dates, titles, source containers, DOIs and URLs consistent across every entry instead of correcting punctuation one item at a time.
Common mistake
Do not paste an in-text citation into the reference list or treat a search-result snippet as bibliographic metadata. The reference entry needs the underlying work, not the way another page happened to mention it.