Gaya APA
Makridakis, Spyros G. (1990).
Forecasting, planning, and strategy for the 21st century .
New York:
The Free Press.
Gaya Chicago
Makridakis, Spyros G.
Forecasting, planning, and strategy for the 21st century.
New York:
The Free Press,
1990.
Buku.
Gaya MLA
Makridakis, Spyros G.
Forecasting, planning, and strategy for the 21st century.
New York:
The Free Press,
1990.
Buku.
Gaya Turabian
Makridakis, Spyros G.
Forecasting, planning, and strategy for the 21st century.
New York:
The Free Press,
1990.
Buku.