Dyfyniad APA

HARVARD BUSINESS REVIEW. (1980). ADVERTISING BETTER PLANNING, BETTER RESULTS. HARVARD BUSINESS REVIEW.

Dyfyniad Arddull Chicago

HARVARD BUSINESS REVIEW. ADVERTISING BETTER PLANNING, BETTER RESULTS. BOSTON: HARVARD BUSINESS REVIEW, 1980.

Dyfyniad MLA

HARVARD BUSINESS REVIEW. ADVERTISING BETTER PLANNING, BETTER RESULTS. HARVARD BUSINESS REVIEW, 1980.

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