APA (7th ed.) Citation

Keller, G., & Teufel, T. (1998). SAP R/3 process-oriented implementation: Iterative process prototyping. Addison Wesley Longman.

Chicago Style (17th ed.) Citation

Keller, Gerhard, and T. Teufel. SAP R/3 Process-oriented Implementation: Iterative Process Prototyping. Harlow, England ; Reading, Ma: Addison Wesley Longman, 1998.

MLA (9th ed.) Citation

Keller, Gerhard, and T. Teufel. SAP R/3 Process-oriented Implementation: Iterative Process Prototyping. Addison Wesley Longman, 1998.