Gaya APA
Valentine, Lloyd M. (1987).
Business cycles and forecasting (7e).
Cincinnati, Ohio:
South Western.
Gaya Chicago
Valentine, Lloyd M.
Business cycles and forecasting.
7e
Cincinnati, Ohio:
South Western,
1987.
Buku.
Gaya MLA
Valentine, Lloyd M.
Business cycles and forecasting.
7e
Cincinnati, Ohio:
South Western,
1987.
Buku.
Gaya Turabian
Valentine, Lloyd M.
Business cycles and forecasting.
7e
Cincinnati, Ohio:
South Western,
1987.
Buku.