References are different for each type of resource.

For a journal article, you should include the author (last name, first and middle initials), year of publication (in parentheses), title, name of journal (in italics), Volume(Issue), page range, and, if possible, DOI number.
 

Mezirow, J. (2003). Transformative learning as discourse. Journal of Transformative Education, 1(1), 58-63. DOI: 10.1177/1541344603252172

For a book, your reference should include the author(s) (last name, first and middle initials), year of publication (in parentheses), name of the book (in italics), place of publication (followed by a colon), and name of the publisher.
 

Ambrose, S. A., Lovett, M., Bridges, M. W., DiPietro, M., & Norman, M. K. (2010). How learning works: Seven research-based principles for smart teaching. San Francisco, CA: Jossey-Bass.

You can view Anatomy of a Reference (Writing Center media) to learn about the components of creating a reference in APA Style.