Atkinson, J. W., & Feather, N. T. (1966). A theory of achievement motivation. wiley.
Lua i Stíl Chicago (17ú heag.)Atkinson, John William, agus Norman T. Feather. A Theory of Achievement Motivation. New York: wiley, 1966.
Lua MLA (9ú heag.)Atkinson, John William, agus Norman T. Feather. A Theory of Achievement Motivation. wiley, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.