Forman, J. (1990). The Random House Guide to business writing. Mc Graw Hill.
Cita Chicago (17th ed.)Forman, Janis. The Random House Guide to Business Writing. New York: Mc Graw Hill, 1990.
Cita MLA (9th ed.)Forman, Janis. The Random House Guide to Business Writing. Mc Graw Hill, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.