Sherman, R. (1972). Oligopoly: An empirical approach. Lexington Books.
Cita Chicago Style (17a ed.)Sherman, Roger. Oligopoly: An Empirical Approach. Lexington, Mass: Lexington Books, 1972.
Cita MLA (9a ed.)Sherman, Roger. Oligopoly: An Empirical Approach. Lexington Books, 1972.
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