Penggayaan APA
CETRON, Marvin J.. (1982).
Encounters with the future: a forecast of life into the 21st century .
New York:
McGraw-Hill Book Company.
Chicago Style
CETRON, Marvin J..
Encounters with the future: a forecast of life into the 21st century.
New York:
McGraw-Hill Book Company,
1982.
Buku.
MLA Style
CETRON, Marvin J..
Encounters with the future: a forecast of life into the 21st century.
New York:
McGraw-Hill Book Company,
1982.
Buku.
Turabian Style
CETRON, Marvin J..
Encounters with the future: a forecast of life into the 21st century.
New York:
McGraw-Hill Book Company,
1982.
Buku.