APA

Richards J., Hull J. & Proctor S. (2004). New interchange. English for international communication. 2. Cambridge: Cambridge University Press.

Chicago

Richards J.C, Hull J and Proctor S. 2004. New interchange. English for international communication. 2. Cambridge: Cambridge University Press.

Harvard

Richards J., Hull J. and Proctor S. (2004). New interchange. English for international communication. 2. Cambridge: Cambridge University Press.

MLA

Richards J.C, Hull J and Proctor S. New interchange. English for international communication. 2. Cambridge: Cambridge University Press. 2004.