FORSYTHE R E. (1976). MATHEMATICS FOR ECONOMICS AND BUSINESS ANALYSIS. GOODYEAR.
Lua i Stíl Chicago (17ú heag.)FORSYTHE R E. MATHEMATICS FOR ECONOMICS AND BUSINESS ANALYSIS. CALIFORNIA: GOODYEAR, 1976.
Lua MLA (9ú heag.)FORSYTHE R E. MATHEMATICS FOR ECONOMICS AND BUSINESS ANALYSIS. GOODYEAR, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.