Lua APA (7ú heag.)

Dressel, P. L., & Thompson, M. M. (1973). Independent study. Jossey-Bass.

Lua i Stíl Chicago (17ú heag.)

Dressel, Paul L., agus Mary M. Thompson. Independent Study. San Francisco: Jossey-Bass, 1973.

Lua MLA (9ú heag.)

Dressel, Paul L., agus Mary M. Thompson. Independent Study. Jossey-Bass, 1973.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.