Dyfyniad APA

HARVARD BUSINESS REVIEW. (1976). FORECASTING. HARVARD BUSINESS REVIEW.

Dyfyniad Arddull Chicago

HARVARD BUSINESS REVIEW. FORECASTING. BOSTON: HARVARD BUSINESS REVIEW, 1976.

Dyfyniad MLA

HARVARD BUSINESS REVIEW. FORECASTING. HARVARD BUSINESS REVIEW, 1976.

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