Cita APA

Wilson, W., & Barnard, R. (1992). Fifty-fifty: A basic course in communicative English. Englewood Cliffs, N.J.: Prentice Hall Regents.

Citación estilo Chicago

Wilson, Warren, y Róger Barnard. Fifty-fifty: A Basic Course in Communicative English. Englewood Cliffs, N.J.: Prentice Hall Regents, 1992.

Cita MLA

Wilson, Warren, y Róger Barnard. Fifty-fifty: A Basic Course in Communicative English. Englewood Cliffs, N.J.: Prentice Hall Regents, 1992.

Precaución: Estas citas no son 100% exactas.