TOFFLER, A. (1990). Power Shift. Bantam Books.
Lua i Stíl Chicago (17ú heag.)TOFFLER, Alvin. Power Shift. Bantam Books, 1990.
Lua MLA (8ú heag.)TOFFLER, Alvin. Power Shift. Bantam Books, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.