Dyfyniad APA

Voiles, P. R. (1993). Business English Essentials. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Voiles, Price R. Business English Essentials. New York: McGraw-Hill, 1993.

Dyfyniad MLA

Voiles, Price R. Business English Essentials. New York: McGraw-Hill, 1993.

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