Elsevier. Pergamon. Government publications review. Elsevier Ltd.
Cita Chicago (17th ed.)Elsevier. Pergamon. Government Publications Review. Oxford: Elsevier Ltd.
Cita MLA (8th ed.)Elsevier. Pergamon. Government Publications Review. Elsevier Ltd.
Atenció: Aquestes cites poden no estar 100% correctes.