According to APA style guidelines, you need as much of the following information as you can find about your sources:
What's a DOI?
Many citation styles now require that a Digital Object Identifier (DOI) be included in your citation, if available. To see if a journal article has been assigned a DOI, you can look it up on CrossRef or Ask a Librarian.
Which citation organizer should you choose?
This video highlights the pros and cons of each citation organizer in order to choose the software that best fits your needs!