Cita APA

RIS (Research information systems, I. (1992). Reference manager: Version 5 for MS-DOS. U.S.A: RIS (Research information systems, Inc.).

Citación estilo Chicago

RIS (Research information systems, Inc.). Reference Manager: Version 5 for MS-DOS. U.S.A: RIS (Research information systems, Inc.), 1992.

Cita MLA

RIS (Research information systems, Inc.). Reference Manager: Version 5 for MS-DOS. U.S.A: RIS (Research information systems, Inc.), 1992.