Jackson, D. (1998). Technological change, the learning curve and profitability. Edward Elgar.
Lua i Stíl Chicago (17ú heag.)Jackson, Dudley. Technological Change, the Learning Curve and Profitability. Cheltenham, U.K: Edward Elgar, 1998.
Lua MLA (9ú heag.)Jackson, Dudley. Technological Change, the Learning Curve and Profitability. Edward Elgar, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.