Cita APA (7a ed.)

Sin autor & International Business Machines Corporation - IBM. (1982). IBM Virtual Machine/System Product: System Messages and Codes : Release 2 (2nd ed.). [S.n.].

Cita Chicago Style (17a ed.)

Sin autor y International Business Machines Corporation - IBM. IBM Virtual Machine/System Product: System Messages and Codes : Release 2. 2nd ed. Nueva York: [S.n.], 1982.

Cita MLA (9a ed.)

Sin autor y International Business Machines Corporation - IBM. IBM Virtual Machine/System Product: System Messages and Codes : Release 2. 2nd ed. [S.n.], 1982.