Cita APA (7th ed.)
ebrary, Inc. (2004). The value chain and marketing. Emerald Group Publishing.
Cita Chicago (17th ed.)
ebrary, Inc. The Value Chain and Marketing. Bradford, England: Emerald Group Publishing, 2004.
Cita MLA (9th ed.)
ebrary, Inc. The Value Chain and Marketing. Emerald Group Publishing, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.