APA (7th ed.) Citation

Wittemann, K., & Gerten, S. REXX unter OS 2. Hanser.

Chicago Style (17th ed.) Citation

Wittemann, Karlheinz, and Stefan Gerten. REXX Unter OS 2. München [u.a.]: Hanser.

MLA (9th ed.) Citation

Wittemann, Karlheinz, and Stefan Gerten. REXX Unter OS 2. Hanser.

Warning: These citations may not always be 100% accurate.