SINGH U K. (1998). INTERNATIONAL ENCYCLOPAEDIA OF PROFESSIONAL MANAGEMENT: PUBLIC RELATIONS MGMT. ANMOL PUBLISHERS.
Cita Chicago (17th ed.)SINGH U K. INTERNATIONAL ENCYCLOPAEDIA OF PROFESSIONAL MANAGEMENT: PUBLIC RELATIONS MGMT. NEW DHLHI: ANMOL PUBLISHERS, 1998.
Cita MLA (9th ed.)SINGH U K. INTERNATIONAL ENCYCLOPAEDIA OF PROFESSIONAL MANAGEMENT: PUBLIC RELATIONS MGMT. ANMOL PUBLISHERS, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.