Dyfyniad APA

HARVARD BUSINESS REVIEW. (1991). SHARPENING THE MARKETING EDGE. HBR LIBRARY.

Dyfyniad Arddull Chicago

HARVARD BUSINESS REVIEW. SHARPENING THE MARKETING EDGE. AMI MUMBAI: HBR LIBRARY, 1991.

Dyfyniad MLA

HARVARD BUSINESS REVIEW. SHARPENING THE MARKETING EDGE. HBR LIBRARY, 1991.

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