Referencing accurately can determine the grade you get for an assignment or success when submitting publications.
The American Psychological Association (APA) have released their 7th guide to referencing.
This APA referencing style guide provides some insight into APA style rules.
The APA 7th brief guide provides you with a useful table so you can quickly check your references and citations.
You can also find the Publication Manual of the American Psychological Association (7th edition) here.