Dyfyniad APA

Berg, F. S. (1978). Listening and speech training package. Grune & Stratton.

Dyfyniad Arddull Chicago

Berg, Frederick S. Listening and Speech Training Package. New York: Grune & Stratton, 1978.

Dyfyniad MLA

Berg, Frederick S. Listening and Speech Training Package. Grune & Stratton, 1978.

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