Cita APA (7a ed.)
ebrary, Inc, & Royne Stafford, M. (2002). Promotion of services. Emerald Group Publishing.
Cita Chicago Style (17a ed.)
ebrary, Inc, y Marla Royne Stafford. Promotion of Services. Bradford, England: Emerald Group Publishing, 2002.
Cita MLA (9a ed.)
ebrary, Inc, y Marla Royne Stafford. Promotion of Services. Emerald Group Publishing, 2002.
Precaución: Estas citas no son 100% exactas.