(1984). Journal of career development.
Lua i Stíl Chicago (17ú heag.)Journal of Career Development. 1984.
Lua MLA (9ú heag.)Journal of Career Development. 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)