Lua APA (7ú heag.)
ebrary, Inc, & Frie, R. (2008). Psychological agency: Theory, practice, and culture. MIT Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Roger Frie. Psychological Agency: Theory, Practice, and Culture. Cambridge, Mass.: MIT Press, 2008.
Lua MLA (9ú heag.)
ebrary, Inc, agus Roger Frie. Psychological Agency: Theory, Practice, and Culture. MIT Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.