DICKSON DEN. (1986). IMPROVE YOUR BUSINESS: WORK BOOK. INTERNATIONAL LABOUR ORGANIZATION.
Lua i Stíl Chicago (17ú heag.)DICKSON DEN. IMPROVE YOUR BUSINESS: WORK BOOK. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1986.
Lua MLA (9ú heag.)DICKSON DEN. IMPROVE YOUR BUSINESS: WORK BOOK. INTERNATIONAL LABOUR ORGANIZATION, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.