Dyfyniad APA

Makridakis, S., Wheelwright, S. C., & McGee, V. R. (1983). Forecasting: Methods and applications. -2nded. (2nded.). John Wiley.

Dyfyniad Arddull Chicago

Makridakis, Spyros, Steven C. Wheelwright, and Victor R. McGee. Forecasting: Methods and Applications. -2nded. 2nded. New York: John Wiley, 1983.

Dyfyniad MLA

Makridakis, Spyros, et al. Forecasting: Methods and Applications. -2nded. 2nded. John Wiley, 1983.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.