Cita APA (7th ed.)
ebrary, Inc, Freytag, P. V., & Ritter, T. (2007). Challenging business relationships. Emerald Group Publishing.
Cita Chicago (17th ed.)
ebrary, Inc, Per Vagn Freytag, i Thomas Ritter. Challenging Business Relationships. Bradford, England: Emerald Group Publishing, 2007.
Cita MLA (9th ed.)
ebrary, Inc, et al. Challenging Business Relationships. Emerald Group Publishing, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.