Gaya APA

Bails, D, G., Peppers, L, C. (1982). Business Fluctuations: forecasting techniques and Applications (Pertama, Cet.3). London: Prentice Hall.

Gaya MLA

Bails, Dale, G.., Peppers, Larry, C.. "Business Fluctuations: forecasting techniques and Applications". Pertama, Cet.3 London: Prentice Hall, 1982. Teks.