Cita APA (7th ed.)
ebrary, Inc. (2005). Marketing. Emerald Group Pub..
Cita Chicago (17th ed.)
ebrary, Inc. Marketing. Bradford: Emerald Group Pub., 2005.
Cita MLA (9th ed.)
ebrary, Inc. Marketing. Emerald Group Pub., 2005.
Atenció: Aquestes cites poden no estar 100% correctes.