Cita APA (7th ed.)
Level, D. A. (1988). Managerial communications. Business publ. Inc..
Cita Chicago (17th ed.)
Level, Dale A. Managerial Communications. Texas: Business publ. Inc., 1988.
Cita MLA (9th ed.)
Level, Dale A. Managerial Communications. Business publ. Inc., 1988.
Atenció: Aquestes cites poden no estar 100% correctes.