Cita APA (7a ed.)

Sin autor & International Business Machines Corporation - IBM. (1976). OS/VS1 supervisor services and macro instructions (3rd ed.). [S.n.].

Cita Chicago Style (17a ed.)

Sin autor y International Business Machines Corporation - IBM. OS/VS1 Supervisor Services and Macro Instructions. 3rd ed. Nueva York: [S.n.], 1976.

Cita MLA (9a ed.)

Sin autor y International Business Machines Corporation - IBM. OS/VS1 Supervisor Services and Macro Instructions. 3rd ed. [S.n.], 1976.