Dyfyniad APA

Business World. (2019). Marketing White Book 2018-19. Business World.

Dyfyniad Arddull Chicago

Business World. Marketing White Book 2018-19. Business World, 2019.

Dyfyniad MLA

Business World. Marketing White Book 2018-19. Business World, 2019.

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