TOFFLER, A. (1990). Powershift: Knowledge, wealth, and violence at the edgeof the 21st century. Bantam Books.
Chicago-čujuhus (17. p.)TOFFLER, Alvin. Powershift: Knowledge, Wealth, and Violence at the Edgeof the 21st Century. New York: Bantam Books, 1990.
MLA-čujuhus (9. p.)TOFFLER, Alvin. Powershift: Knowledge, Wealth, and Violence at the Edgeof the 21st Century. Bantam Books, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.