Elsevier. Pergamon. Government publications review. Elsevier Ltd.
Style de citation Chicago (17e éd.)Elsevier. Pergamon. Government Publications Review. Oxford: Elsevier Ltd.
Style de citation MLA (8e éd.)Elsevier. Pergamon. Government Publications Review. Elsevier Ltd.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.