Dyfyniad APA

Tullis G. Grahm & Trappe T. Tonya. (2000). New Insights into Business. Class Cassette One. Longman, 2000.

Dyfyniad Arddull Chicago

Tullis G. Grahm and Trappe T. Tonya. New Insights into Business. Class Cassette One. Longman, 2000, 2000.

Dyfyniad MLA

Tullis G. Grahm and Trappe T. Tonya. New Insights into Business. Class Cassette One. Longman, 2000, 2000.

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