Dyfyniad APA

Brennan, R. (2011). Business to business maketing (2nd.). Sage Publisher.

Dyfyniad Arddull Chicago

Brennan, Ross. Business to Business Maketing. 2nd. New Delhi: Sage Publisher, 2011.

Dyfyniad MLA

Brennan, Ross. Business to Business Maketing. 2nd. Sage Publisher, 2011.

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