Gaya APA
Business Cycles and Forecasting. (1983).
Amerika:
South-Western College Publishing.
Gaya Chicago
Business Cycles and Forecasting.
Ed. 6.
Amerika:
South-Western College Publishing,
1983.
.
Gaya MLA
Business Cycles and Forecasting.
Ed. 6.
Amerika:
South-Western College Publishing,
1983.
.
Gaya Turabian
Business Cycles and Forecasting.
Amerika:
South-Western College Publishing,
1983.
.