McCarthy, M., & Oï Dell, F. (2001). English vocabulary in use: Upper- intermediate (2a. ed.). University of Cambridge.

McCarthy, Michael, and Felicity Oï Dell. English Vocabulary in Use: Upper- Intermediate. 2a. ed. Cambridge: University of Cambridge, 2001.

McCarthy, Michael, and Felicity Oï Dell. English Vocabulary in Use: Upper- Intermediate. 2a. ed. University of Cambridge, 2001.