George, D. A. (1988). Mathematical modelling for economists. Macmillan Education.
Lua i Stíl Chicago (17ú heag.)George, Donald A.R. Mathematical Modelling for Economists. Basingstoke, Hants, Eng: Macmillan Education, 1988.
Lua MLA (9ú heag.)George, Donald A.R. Mathematical Modelling for Economists. Macmillan Education, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.