Gaya APA
Wilson, J, H., Inc., B, K, J, G, S.
(1942).
Business Forecasting
(
4)
.
Amerika:
Mc.Graw Hil.
Gaya MLA
Wilson, J., Holton., Inc., Barry, Kreating, John, Galt, Solution.
"Business Forecasting".
4
Amerika:
Mc.Graw Hil,
1942.
Text.