Gaya APA
Toffler, A. (1991).
Powershift: Knowledge, Wealth, and Power at the Edge of the 21st Century .
New York:
Bantam Books.
Gaya MLA
Toffler, Alvin.
"Powershift: Knowledge, Wealth, and Power at the Edge of the 21st Century".
New York:
Bantam Books,
1991.
Book - Paperback.