Beard, R. M., & Senior, I. J. (1980). Motivating students. Routledge.
Lua i Stíl Chicago (17ú heag.)Beard, Ruth M., agus Isabel J. Senior. Motivating Students. London: Routledge, 1980.
Lua MLA (9ú heag.)Beard, Ruth M., agus Isabel J. Senior. Motivating Students. Routledge, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.