Dyfyniad APA

MAKRIDAKIS, S., WHEELWRIGHT, S., & McGEE, V. E. (1983). Forecasting: Methods and applications.-- ed.2 (2.). John Wiley and Sons.

Dyfyniad Arddull Chicago

MAKRIDAKIS, Spyros, Steven WHEELWRIGHT, and Victor E. McGEE. Forecasting: Methods and Applications.-- Ed.2. 2. New York: John Wiley and Sons, 1983.

Dyfyniad MLA

MAKRIDAKIS, Spyros, et al. Forecasting: Methods and Applications.-- Ed.2. 2. John Wiley and Sons, 1983.

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