APA (7th ed.) Citation

Bechlars, J., & Buhtz, R. (1985). Das graphische Kernsystem (GKS) in der Praxis.

Chicago Style (17th ed.) Citation

Bechlars, Jörg, and Rainer Buhtz. Das Graphische Kernsystem (GKS) in Der Praxis. Berlin, 1985.

MLA (9th ed.) Citation

Bechlars, Jörg, and Rainer Buhtz. Das Graphische Kernsystem (GKS) in Der Praxis. 1985.

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