Ryan, K., & Cooper, J. M. (1992). Those who can, teach (6th ed.). Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Ryan, Kevin, agus James Michael Cooper. Those Who Can, Teach. 6th ed. Boston: Houghton Mifflin, 1992.
Lua MLA (9ú heag.)Ryan, Kevin, agus James Michael Cooper. Those Who Can, Teach. 6th ed. Houghton Mifflin, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.