Trace, J. (1985). Style and strategy of the business letter. Prentice-Hall.
Cita Chicago (17th ed.)Trace, Jacqueline. Style and Strategy of the Business Letter. Englewood Cliffs, N.J: Prentice-Hall, 1985.
Cita MLA (9th ed.)Trace, Jacqueline. Style and Strategy of the Business Letter. Prentice-Hall, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.