APA

Richards J. C., Hull J. & Proctor S. (1994). Interchange 1. Student's book : english for international communication. United States: Cambridge University Press.

Chicago

Richards Jack C, Hull Jonathan and Proctor Susan. 1994. Interchange 1. Student's book : english for international communication. United States: Cambridge University Press.

Harvard

Richards J. C., Hull J. and Proctor S. (1994). Interchange 1. Student's book : english for international communication. United States: Cambridge University Press.

MLA

Richards Jack C, Hull Jonathan and Proctor Susan. Interchange 1. Student's book : english for international communication. United States: Cambridge University Press. 1994.