Zotero allows the collection of citations to any kind of material and automatically formats bibliographies in almost any style. Zotero also has many search, tagging, and note taking features.
Note that Zotero supplies 300 MB of free storage for PDFs, images, web snapshots, and any other Zotero files. Individual subscriptions for additional storage space are available.
Some library databases allow you to get bibliographic information in selected styles such as APA when emailing and saving records.
Always double check citations produced electronically to make sure they are in correct APA style. No citation generator is infallible.
Plagiarism is a very serious academic transgression. Copyright law, and exceptions such as fair use, can be complex. To learn more, check out the following resources:
If you're thinking of publishing your research in an academic journal or are invited to publish y a journal you're unfamiliar with, here are some resources that may help: