APA-referens (7:e uppl.)

Hanke, J. E. (2005). Business Forecasting. Cengage Learning.

Chicago-referens (17:e uppl.)

Hanke, John E. Business Forecasting. New Delhi: Cengage Learning, 2005.

MLA-referens (9:e uppl.)

Hanke, John E. Business Forecasting. Cengage Learning, 2005.