Gaya APA
The Future Now: Predicting the 21st Century. (1998).
London:
Weidenfeld & Nicolson.
Gaya Chicago
The Future Now: Predicting the 21st Century.
.
London:
Weidenfeld & Nicolson,
1998.
Buku.
Gaya MLA
The Future Now: Predicting the 21st Century.
.
London:
Weidenfeld & Nicolson,
1998.
Buku.
Gaya Turabian
The Future Now: Predicting the 21st Century.
London:
Weidenfeld & Nicolson,
1998.
Buku.