APA Style

Dubicka, I., O'Keeffe, M. (2006). Market Leader: Advanced Business English Course Book (New Edition) . England: Pearson Longman (JP).

MLA Style

Dubicka, Iwonna., O'Keeffe, Margaret. "Market Leader: Advanced Business English Course Book (New Edition)". England: Pearson Longman (JP), 2006. Text.