Dyfyniad APA

Trace, J. (1985). Style and strategy of the business letter. Prentice-Hall.

Dyfyniad Arddull Chicago

Trace, Jacqueline. Style and Strategy of the Business Letter. Englewood Cliffs, N.J: Prentice-Hall, 1985.

Dyfyniad MLA

Trace, Jacqueline. Style and Strategy of the Business Letter. Prentice-Hall, 1985.

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