APA (7th ed.) Citation

Bakker, P., & Bakker, R. (2016). How to pass the SAP® ABAP certification exam. Espresso Tutorials.

Chicago Style (17th ed.) Citation

Bakker, Paul, and Rick Bakker. How to Pass the SAP® ABAP Certification Exam. Gleichen: Espresso Tutorials, 2016.

MLA (8th ed.) Citation

Bakker, Paul, and Rick Bakker. How to Pass the SAP® ABAP Certification Exam. Espresso Tutorials, 2016.