Cita APA (7a ed.)

Wirth, N., & Gutknecht, J. (1992). Project Oberon: The design of an operating system and compilers. ACM, Addison-Wesley.

Cita Chicago Style (17a ed.)

Wirth, Niklaus, y Jürg Gutknecht. Project Oberon: The Design of an Operating System and Compilers. New York : Wokingham [etc.]: ACM, Addison-Wesley, 1992.

Cita MLA (9a ed.)

Wirth, Niklaus, y Jürg Gutknecht. Project Oberon: The Design of an Operating System and Compilers. ACM, Addison-Wesley, 1992.