APA (7th ed.) Citation

Engelhardt, S., Schwarz, S., & Schmutzer, M. O. (2002). Customer Relationship Management. Fachhochsch. Erfurt.

Chicago Style (17th ed.) Citation

Engelhardt, Susanne, Steffen Schwarz, and Michael O. Schmutzer. Customer Relationship Management. Erfurt: Fachhochsch. Erfurt, 2002.

MLA (9th ed.) Citation

Engelhardt, Susanne, et al. Customer Relationship Management. Fachhochsch. Erfurt, 2002.