Dyfyniad APA

Elfenbein, J. (1973). Modern business: Buisness letters and communications. Robert Hale.

Dyfyniad Arddull Chicago

Elfenbein, Julien. Modern Business: Buisness Letters and Communications. London: Robert Hale, 1973.

Dyfyniad MLA

Elfenbein, Julien. Modern Business: Buisness Letters and Communications. Robert Hale, 1973.

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