Crew, M. A. (1979). Public utility economics. Macmillan.
Chicago Style (17th ed.) ZitazioaCrew, Michael A. Public Utility Economics. London: Macmillan, 1979.
MLA (9th ed.) ZitazioaCrew, Michael A. Public Utility Economics. Macmillan, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.