In APA Style 7th edition, you have to cite your sources in two ways; in the body of your paper, called in-text citations, and in a list at the end of your paper, called a reference list.
In-text citations are brief references within the body of your paper that point to the source of the information, ideas, or quotes you've used. They help your reader understand which sources support your arguments and give credit to the original authors.
Quoting a source in your paper
In-text citations usually include the author's last name, the publication year, and, if you use a quote in your paper, the page number(s) where the quote can be found. For example:
Paraphrasing a source in your paper
If you're paraphrasing a source without directly quoting, you can leave out the page number:
The reference list is a list of all the sources cited in your paper. It appears at the end of your work and provides detailed information about each source so that readers can locate the original material.
A reference entry typically includes the author(s), publication date, title, source, and, if applicable, the DOI or URL. The format for each reference entry may vary depending on the type of source (e.g., journal article, book, website, etc.). These are the elements of a reference list entry for a journal article:
Here is an example of a reference list entry for a journal article: