Dyfyniad APA

Eby, F. H., & O'neill, W. J. (1977). Management of sales forecasting. Lexington.

Dyfyniad Arddull Chicago

Eby, Frank H., and William J. O'neill. Management of Sales Forecasting. Lexington: Lexington, 1977.

Dyfyniad MLA

Eby, Frank H., and William J. O'neill. Management of Sales Forecasting. Lexington, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.