Gaya APA
Toffler, A. (1991).
Power Shift : Knowledge, Wealth,and Violence at the Edge of the 21st Century (CET.1).
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Bantam Press.
Gaya MLA
Toffler, Alvin.
"Power Shift : Knowledge, Wealth,and Violence at the Edge of the 21st Century".
CET.1
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Bantam Press,
1991.
Text.