APA

Richards J. C., . (1997). New interchange: English for international communication. Student ́s book 2. Cambridge: Cambridge University Press.

Chicago

Richards Jack C, . 1997. New interchange: English for international communication. Student ́s book 2. Cambridge: Cambridge University Press.

Harvard

Richards J. C., . (1997). New interchange: English for international communication. Student ́s book 2. Cambridge: Cambridge University Press.

MLA

Richards Jack C, . New interchange: English for international communication. Student ́s book 2. Cambridge: Cambridge University Press. 1997.