APA
Kahn K. B., . (2007). New Product Forecasting. New Delhi: Prentice-Hall of India.
Chicago
Kahn Kenneth B, . 2007. New Product Forecasting. New Delhi: Prentice-Hall of India.
Harvard
Kahn K. B., . (2007). New Product Forecasting. New Delhi: Prentice-Hall of India.
MLA
Kahn Kenneth B, . New Product Forecasting. New Delhi: Prentice-Hall of India. 2007.