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.
Precaución: Estas citas no son 100% exactas.