Gaya APA
Valentine, Lloyd M. (1983).
Business cycles and forecasting .
Dallas:
Western:.
Gaya Chicago
Valentine, Lloyd M.
Business cycles and forecasting.
Dallas:
Western:,
1983.
Media Cetak.
Gaya MLA
Valentine, Lloyd M.
Business cycles and forecasting.
Dallas:
Western:,
1983.
Media Cetak.
Gaya Turabian
Valentine, Lloyd M.
Business cycles and forecasting.
Dallas:
Western:,
1983.
Media Cetak.