GROSS, C. W., & GROSS, C. W. (1976). Business Forecasting Charles W. Gross And Robin T. Peterson. Houghton Mifflin Company.
Chicago-viite (17. p.)GROSS, Charles W., ja Charles W. GROSS. Business Forecasting Charles W. Gross And Robin T. Peterson. Houghton Mifflin Company, 1976.
MLA-viite (8. p.)GROSS, Charles W., ja Charles W. GROSS. Business Forecasting Charles W. Gross And Robin T. Peterson. Houghton Mifflin Company, 1976.
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