APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.