Dyfyniad APA

Dubicka, I., & O'Keeffe, M. (2015). Market Leader: Advanced: Business English Course Book. PearsonLongman.

Dyfyniad Arddull Chicago

Dubicka, Iwonna, và Margaret O'Keeffe. Market Leader: Advanced: Business English Course Book. PearsonLongman, 2015.

Dyfyniad MLA

Dubicka, Iwonna, và Margaret O'Keeffe. Market Leader: Advanced: Business English Course Book. PearsonLongman, 2015.

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