Gaya APA

Makridakis, S, G., Whellwright, S. (1982). The Handbook of forecasting : a manager's guide . New York: John Wiley.

Gaya MLA

Makridakis, Spyros, G.., Whellwright, S.C.. "The Handbook of forecasting : a manager's guide". New York: John Wiley, 1982. Buku/Printed Material.