Hellman, R. (1972). Government competition in the electric utility industry: A theoretical and empirical study. Praeger Publishers.
Citace podle Chicago (17th ed.)Hellman, Richard. Government Competition in the Electric Utility Industry: A Theoretical and Empirical Study. New York: Praeger Publishers, 1972.
Citace podle MLA (8th ed.)Hellman, Richard. Government Competition in the Electric Utility Industry: A Theoretical and Empirical Study. Praeger Publishers, 1972.
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