Dyfyniad APA

Brennan, R. C. (2011). Business to business marketing (2nd ed.). Sage.

Dyfyniad Arddull Chicago

Brennan, Ross; Canning. Business to Business Marketing. 2nd ed. New Delhi: Sage, 2011.

Dyfyniad MLA

Brennan, Ross; Canning. Business to Business Marketing. 2nd ed. Sage, 2011.

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