Cita APA

Wilson, W., & Barnard, R. (1998). Fifty-Fifty: A basic course in communicative English (2nd ed.). Prentice Hall ELT.

Citación estilo Chicago

Wilson, Warren, and Roger Barnard. Fifty-Fifty: A Basic Course in Communicative English. 2nd ed. Singapore: Prentice Hall ELT, 1998.

Cita MLA

Wilson, Warren, and Roger Barnard. Fifty-Fifty: A Basic Course in Communicative English. 2nd ed. Prentice Hall ELT, 1998.

Warning: These citations may not always be 100% accurate.