Cita APA (7th ed.)

Bowman, J. (1979). Effective business correspondence. Confield Press.

Cita Chicago (17th ed.)

Bowman, J. Effective Business Correspondence. Sun Francisco: Confield Press, 1979.

Cita MLA (9th ed.)

Bowman, J. Effective Business Correspondence. Confield Press, 1979.