Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.