Cita APA

Richards, J. C., Hull, J., & Proctor, S. (1998). New interchange: English for international communication, workbook, 1. University.

Citación estilo Chicago

Richards, Jack C., Jonathan Hull, and Susan Proctor. New Interchange: English for International Communication, Workbook, 1. Cambridge: University, 1998.

Cita MLA

Richards, Jack C., Jonathan Hull, and Susan Proctor. New Interchange: English for International Communication, Workbook, 1. Cambridge: University, 1998.