Cita APA (7a ed.)

Sin autor & International Business Machines Corporation - IBM. (1977). IBM Virtual Machine Facility/370: System messages (9th ed.). IBM Corporation.

Cita Chicago Style (17a ed.)

Sin autor y International Business Machines Corporation - IBM. IBM Virtual Machine Facility/370: System Messages. 9th ed. Nueva York: IBM Corporation, 1977.

Cita MLA (9a ed.)

Sin autor y International Business Machines Corporation - IBM. IBM Virtual Machine Facility/370: System Messages. 9th ed. IBM Corporation, 1977.