APA citiranje

Richards, J., & Long, M. (1980). Breakthrough: A Course in English Communication Practice. Paris: Hermes*.

Trích dẫn kiểu Chicago

Richards, J.c., và M.n Long. Breakthrough: A Course in English Communication Practice. Paris: Hermes*, 1980.

MLA citiranje

Richards, J.c., và M.n Long. Breakthrough: A Course in English Communication Practice. Paris: Hermes*, 1980.