HARVARD BUSINESS REVIEW. (1980). ADVERTISING BETTER PLANNING, BETTER RESULTS. HARVARD BUSINESS REVIEW.
Chicago Style aipamenaHARVARD BUSINESS REVIEW. ADVERTISING BETTER PLANNING, BETTER RESULTS. BOSTON: HARVARD BUSINESS REVIEW, 1980.
MLA aipamenaHARVARD BUSINESS REVIEW. ADVERTISING BETTER PLANNING, BETTER RESULTS. HARVARD BUSINESS REVIEW, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.