Cita APA (7a ed.)

Hemphill, P. D. (1986). Business communications with writing improvement exercises (3d ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Hemphill, Phyllis Davis. Business Communications with Writing Improvement Exercises. 3d ed. New Jersey: Prentice-Hall, 1986.

Cita MLA (9a ed.)

Hemphill, Phyllis Davis. Business Communications with Writing Improvement Exercises. 3d ed. Prentice-Hall, 1986.