GROSS, C. W., & GROSS, C. W. (1976). Business Forecasting Charles W. Gross And Robin T. Peterson. Houghton Mifflin Company.
Čikaški stil citiranja (17. izdanje)GROSS, Charles W., i Charles W. GROSS. Business Forecasting Charles W. Gross And Robin T. Peterson. Houghton Mifflin Company, 1976.
MLA način citiranja (8. izdanje)GROSS, Charles W., i Charles W. GROSS. Business Forecasting Charles W. Gross And Robin T. Peterson. Houghton Mifflin Company, 1976.
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