APA (7th ed.) Citation

Petersen, G. S. (1998). Customer relationship management systems: ROI and results measurement. Strategic Sales Performance.

Chicago Style (17th ed.) Citation

Petersen, Glen S. Customer Relationship Management Systems: ROI and Results Measurement. Downers Grove, IL: Strategic Sales Performance, 1998.

MLA (9th ed.) Citation

Petersen, Glen S. Customer Relationship Management Systems: ROI and Results Measurement. Strategic Sales Performance, 1998.