MILLS, R. L. (1977). Statistics For Applied Economics And Business Richard L Mills. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)MILLS, Richard L. Statistics For Applied Economics And Business Richard L Mills. McGraw-Hill, 1977.
Lua MLA (8ú heag.)MILLS, Richard L. Statistics For Applied Economics And Business Richard L Mills. McGraw-Hill, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.