APA

Richards J. C., . (2001). New Interchange. English for international communication. Intro. Cambridge: Cambridge University Press.

Chicago

Richards J C, . 2001. New Interchange. English for international communication. Intro. Cambridge: Cambridge University Press.

Harvard

Richards J. C., . (2001). New Interchange. English for international communication. Intro. Cambridge: Cambridge University Press.

MLA

Richards J C, . New Interchange. English for international communication. Intro. Cambridge: Cambridge University Press. 2001.