APA (7th ed.) Zitazioa

Tryfos, P. (1998). Methods for business analysis and forecasting: Text and cases. John Wiley.

Chicago Style (17th ed.) Zitazioa

Tryfos, Peter. Methods for Business Analysis and Forecasting: Text and Cases. Nueva York: John Wiley, 1998.

MLA (9th ed.) Zitazioa

Tryfos, Peter. Methods for Business Analysis and Forecasting: Text and Cases. John Wiley, 1998.