APA (7e ed.) Bronvermelding

Hemphill, P. D., & Hemphill, A. M. (1981). Business communications with writing improvement exercises (Second edition.). Prentice-Hall, Inc.

Chicago (17e ed.) Bronvermelding

Hemphill, Phyllis Davis, en Anita M. Hemphill. Business Communications with Writing Improvement Exercises. Second edition. Englewood Cliffs, New Jersey: Prentice-Hall, Inc, 1981.

MLA (9e ed.) Bronvermelding

Hemphill, Phyllis Davis, en Anita M. Hemphill. Business Communications with Writing Improvement Exercises. Second edition. Prentice-Hall, Inc, 1981.