APA-referens (7:e uppl.)

Hanke, J. E. (2005). Business Forecasting (8th ed.). Tata McGraw Hill Education Pvt. Ltd.

Chicago-referens (17:e uppl.)

Hanke, John E. Business Forecasting. 8th ed. New Delhi: Tata McGraw Hill Education Pvt. Ltd, 2005.

MLA-referens (9:e uppl.)

Hanke, John E. Business Forecasting. 8th ed. Tata McGraw Hill Education Pvt. Ltd, 2005.