Dyfyniad APA

MCDONALD WILLIAM J. (1998). DIRECT MARKETING: AN INTEGRATED APPROACH. IRWIN MCGRAW-HILL.

Dyfyniad Arddull Chicago

MCDONALD WILLIAM J. DIRECT MARKETING: AN INTEGRATED APPROACH. BOSTON: IRWIN MCGRAW-HILL, 1998.

Dyfyniad MLA

MCDONALD WILLIAM J. DIRECT MARKETING: AN INTEGRATED APPROACH. IRWIN MCGRAW-HILL, 1998.

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