Cita APA (7a ed.)

Sin autor & International Business Machines Corporation - IBM. (1970). IBM Virtual Machine/System Product: EXEC 2 reference. IBM Corporation.

Cita Chicago Style (17a ed.)

Sin autor y International Business Machines Corporation - IBM. IBM Virtual Machine/System Product: EXEC 2 Reference. Nueva York: IBM Corporation, 1970.

Cita MLA (9a ed.)

Sin autor y International Business Machines Corporation - IBM. IBM Virtual Machine/System Product: EXEC 2 Reference. IBM Corporation, 1970.