APA
Wallace T. F., Stahl R. a., . (2002). Sales Forecasting : A New Approach. New DElhi: Shroff Publishers & Distributors.
Chicago
Wallace Thomas F, Stahl Robert a, . 2002. Sales Forecasting : A New Approach. New DElhi: Shroff Publishers & Distributors.
Harvard
Wallace T. F., Stahl R. a., . (2002). Sales Forecasting : A New Approach. New DElhi: Shroff Publishers & Distributors.
MLA
Wallace Thomas F, Stahl Robert a, . Sales Forecasting : A New Approach. New DElhi: Shroff Publishers & Distributors. 2002.
