Gaya APA
Valentine , Lloyd m. (1983).
Sixth Edition Business Cycles Dan Forecasting .
USA:
South-Western Publishing.
Gaya Chicago
Valentine , Lloyd m.
Sixth Edition Business Cycles Dan Forecasting.
USA:
South-Western Publishing,
1983.
Text.
Gaya MLA
Valentine , Lloyd m.
Sixth Edition Business Cycles Dan Forecasting.
USA:
South-Western Publishing,
1983.
Text.
Gaya Turabian
Valentine , Lloyd m.
Sixth Edition Business Cycles Dan Forecasting.
USA:
South-Western Publishing,
1983.
Print.