.El-Agraa, A. M. (1982). International Economic Integration. the macmillan press ltd.
Chicago Style (17th ed.) Zitazioa.El-Agraa, Ali M. International Economic Integration. london: the macmillan press ltd, 1982.
MLA (9th ed.) Zitazioa.El-Agraa, Ali M. International Economic Integration. the macmillan press ltd, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.