Clark, R. c. (2008). Building Expertise. Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Clark, Ruth colvin. Building Expertise. Ontario: Jossey-Bass, 2008.
Lua MLA (9ú heag.)Clark, Ruth colvin. Building Expertise. Jossey-Bass, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.