GELLHORN, E. (1987). Regulated Industries Ernest Gellhorn, Richard J. Pierce. West Publishing Compan.
Chicago-viite (17. p.)GELLHORN, Ernest. Regulated Industries Ernest Gellhorn, Richard J. Pierce. West Publishing Compan, 1987.
MLA-viite (8. p.)GELLHORN, Ernest. Regulated Industries Ernest Gellhorn, Richard J. Pierce. West Publishing Compan, 1987.
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