PAULUS N L. (1975). ECONOMICS FOR BUSINESS STUDIES. POLYTECH PUBLIHSERS.
Lua i Stíl Chicago (17ú heag.)PAULUS N L. ECONOMICS FOR BUSINESS STUDIES. STOCK PORT: POLYTECH PUBLIHSERS, 1975.
Lua MLA (9ú heag.)PAULUS N L. ECONOMICS FOR BUSINESS STUDIES. POLYTECH PUBLIHSERS, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.