Hill, C. T., & Utterback, J. M. (1979). Technological innovation for a dynamic economy. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Hill, Christopher T., agus James M. Utterback. Technological Innovation for a Dynamic Economy. New York: Pergamon Press, 1979.
Lua MLA (8ú heag.)Hill, Christopher T., agus James M. Utterback. Technological Innovation for a Dynamic Economy. Pergamon Press, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.