Lua APA (7ú heag.)

DUNCKEL JACQUELINE. (1994). EFFECTIVE SPEAKING FOR BUSINESS SUCCESS MAKING CONFIDENT ... AND MORE. LANCER INTERNATIONAL.

Lua i Stíl Chicago (17ú heag.)

DUNCKEL JACQUELINE. EFFECTIVE SPEAKING FOR BUSINESS SUCCESS MAKING CONFIDENT ... AND MORE. INDIA CANADA USA: LANCER INTERNATIONAL, 1994.

Lua MLA (9ú heag.)

DUNCKEL JACQUELINE. EFFECTIVE SPEAKING FOR BUSINESS SUCCESS MAKING CONFIDENT ... AND MORE. LANCER INTERNATIONAL, 1994.

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