APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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