This is the Sacred Heart Library's own APA "quick guide," which is a great resource for basic APA reference. The guide comes as a PDF, so you have the option of downloading and save to your computer or laptop.
This supplemental citation guide from the SHU library provides guidance on how to handle audiovisual and digital resources (like streaming films, online images) in several citation styles, including APA.
Purdue University's Online Writing Lab is a terrific resource for APA formatting and style questions. This site provides a good overview of APA formatting as well as many sample citations and references, and sample papers. This site is updated frequently.
Many students and faculty also choose to download and use the resource management and citation tool Zotero to not only store and organize their articles, but also to assist with in-text citations and reference lists. Zotero is free to install and use, and you can learn more about it by going to the library's extensive Zotero Guide.
If you don't want to install anything on your computer and would just like a reliable tool, you can use Zotero's free online citation generation tool ZoteroBib, which can be found online at zbib.org.
Keep in mind that whenever you use Zotero, or any citation generator tool, you always need to double-check to make sure that your citations are correct. While some citation tools such as Zoteroand software are objectively better than others, none are perfect and all will make mistakes of some sort. It will be up to you to use quality resources like the ones linked above to watch for and correct any errors.