APA Style

Cotton, D. et al (2011). Market Leader : Upper Intemediate Business English Course Book, 3rd Edition. (3rd.). England: Pearson.

MLA Style

Cotton, David. et al. "Market Leader : Upper Intemediate Business English Course Book, 3rd Edition.". 3rd. England: Pearson, 2011. Koleksi Multimedia / CD-ROM.